Mesityl oxide
- C6H10O
- (CH3)2C=CH-COCH3
- MESITYL OXIDE
- 141-79-7
- 4-Methylpent-3-en-2-one
- 4-Methyl-3-penten-2-one
- 3-Penten-2-one, 4-methyl-
- Create:2005-03-26
- Modify:2025-01-18
C6H10O
(CH3)2C=CH-COCH3
- MESITYL OXIDE
- 141-79-7
- 4-Methylpent-3-en-2-one
- 4-Methyl-3-penten-2-one
- 3-Penten-2-one, 4-methyl-
- Methyl isobutenyl ketone
- Isopropylideneacetone
- Isobutenyl methyl ketone
- Mesityloxid
- Mesityloxyde
- Ossido di mesitile
- 3-Isohexen-2-one
- Isopropylidene acetone
- Oxyde de mesityle
- Acetone, isopropylidene-
- Methyl 2-methyl-1-propenyl ketone
- Methyl 2,2-dimethylvinyl ketone
- 2-Methyl-4-oxo-2-pentene
- 2-Methyl-2-pentenone-4
- 2,2-Dimethylvinyl methyl ketone
- 4-Metil-3-penten-2-one
- 4-Methyl-3-pentene-2-one
- 4-Methyl-3-penten-2-on
- 2-Methyl-2-penten-4-one
- FEMA No. 3368
- NSC 38717
- 4-Methyl-3-penten-2-one, 9CI
- 4-methyl-pent-3-en-2-one
- DTXSID1029170
- CHEBI:89993
- (CH3)2C=CHC(=O)CH3
- NSC-38717
- 77LAC84669
- DTXCID209170
- Mesityloxid [German]
- Mesityloxyde [Dutch]
- Caswell No. 547
- FEMA Number 3368
- Oxyde de mesityle [French]
- CAS-141-79-7
- Ossido di mesitile [Italian]
- HSDB 1195
- EINECS 205-502-5
- 4-Metil-3-penten-2-one [Italian]
- UN1229
- EPA Pesticide Chemical Code 052401
- BRN 1361550
- 4-Methyl-3-penten-2-on [Dutch, German]
- AI3-07702
- 4-Methylpent-3-en-2-one; Mesityl oxide; Cilastatin Sodium Imp. D (EP)
- UNII-77LAC84669
- Mesityloxid(german)
- MFCD00008900
- Isopropylidene-Acetone
- Mesityl oxide [UN1229] [Flammable liquid]
- EC 205-502-5
- 2-methylpent-2-en-4-one
- MESITYL OXIDE [MI]
- 1-Methylpent-2-en-4-one
- MESITYL OXIDE [HSDB]
- CHEMBL3185916
- FEMA 3368
- WLN: 1Y1 & U1V1
- 4-Methyl-3-penten-2-one, 90%
- NSC38717
- Tox21_202080
- Tox21_303606
- LMFA12000030
- STL146350
- Mesityl oxide, technical grade, 90%
- AKOS000118892
- UN 1229
- NCGC00249161-01
- NCGC00257514-01
- NCGC00259629-01
- 4-Methyl-3-penten-2-one (mesityl oxide)
- 4-Methyl-3-penten-2-on(DUTCH, GERMAN)
- 4-METHYL-3-PENTENE-2-ONE [FHFI]
- M0069
- M1340
- NS00006985
- TEICOPLANIN IMPURITY A [EP IMPURITY]
- 3-PENTEN,2-ONE,4-METHYL MESITYLOXIDE
- EN300-21333
- Mesityl oxide [UN1229] [Flammable liquid]
- 3-PENTEN,2-ONE,4-METHYL MESITYLOXIDE
- A807813
- CILASTATIN SODIUM IMPURITY D [EP IMPURITY]
- Q425668
- Q-201356
- 4-Methyl-3-penten-2-one, analytical reference material
- Mesityl oxide, 99%, mixture of alpha and beta isomers
- InChI=1/C6H10O/c1-5(2)4-6(3)7/h4H,1-3H
- Mesityl oxide, European Pharmacopoeia (EP) Reference Standard
- Mesityl Oxide, Pharmaceutical Secondary Standard; Certified Reference Material
- Mesityl oxide, suitable for neutral marker for measuring electroosmotic flow (EOF), ~98%
Odor Threshold Low: 0.01 [mmHg]
Odor Threshold High: 12.0 [mmHg]
Detection odor threshold from AIHA (mean = 0.017 ppm)
- Boiling point
- Chemical diffusion
- Chemical shift
- Density
- Diamagnetic susceptibility
- Dielectric constant
- Diffusion
- Diffusive flux
- Heat of sublimation
- Lineshape
- Magnetic susceptibility
- Optical coefficient
- Refractive index
- Sound absorption
- Sound propagation
- Sound velocity
- Spin-spin coupling constant
- Vapor pressure
- Viscosity
55.0 99.99
83.0 94.59
43.0 46.64
98.0 40.98
29.0 34.19
55.0 99.99
83.0 97.83
43.0 59.31
98.0 42.53
39.0 39.76
55 999
83 946
43 466
98 410
29 342
- Cytoplasm
- Extracellular
Painting (Solvents) [Category: Paint]
Plastic Composites Manufacturing [Category: Industry]
2017: 63,000 lb
2016: 189,824 lb
H226 (100%): Flammable liquid and vapor [Warning Flammable liquids]
H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]
H312 (99.6%): Harmful in contact with skin [Warning Acute toxicity, dermal]
H315 (11.3%): Causes skin irritation [Warning Skin corrosion/irritation]
H319 (11.3%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
H331 (14.3%): Toxic if inhaled [Danger Acute toxicity, inhalation]
H332 (85.5%): Harmful if inhaled [Warning Acute toxicity, inhalation]
H335 (11.3%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P316, P317, P319, P321, P330, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501
(The corresponding statement to each P-code can be found at the GHS Classification page.)
Aggregated GHS information provided per 1694 reports by companies from 15 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown.
Flam. Liq. 3 (100%)
Acute Tox. 4 (100%)
Acute Tox. 4 (99.6%)
Skin Irrit. 2 (11.3%)
Eye Irrit. 2A (11.3%)
Acute Tox. 3 (14.3%)
Acute Tox. 4 (85.5%)
STOT SE 3 (11.3%)
Flammable liquid - category 3
Acute toxicity - category 4
Acute toxicity - category 4
Acute toxicity - category 4
· May cause toxic effects if inhaled or absorbed through skin.
· Inhalation or contact with material may irritate or burn skin and eyes.
· Fire will produce irritating, corrosive and/or toxic gases.
· Vapors may cause dizziness or asphyxiation, especially when in closed or confined areas.
· Runoff from fire control or dilution water may cause environmental contamination.
· HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.
· Vapors may form explosive mixtures with air.
· Vapors may travel to source of ignition and flash back.
· Most vapors are heavier than air. They will spread along the ground and collect in low or confined areas (sewers, basements, tanks, etc.).
· Vapor explosion hazard indoors, outdoors or in sewers.
· Those substances designated with a (P) may polymerize explosively when heated or involved in a fire.
· Runoff to sewer may create fire or explosion hazard.
· Containers may explode when heated.
· Many liquids will float on water.
Excerpt from NIOSH Pocket Guide for Mesityl oxide:
Eye: IRRIGATE IMMEDIATELY - If this chemical contacts the eyes, immediately wash (irrigate) the eyes with large amounts of water, occasionally lifting the lower and upper lids. Get medical attention immediately.
Skin: WATER FLUSH IMMEDIATELY - If this chemical contacts the skin, immediately flush the contaminated skin with water. If this chemical penetrates the clothing, immediately remove the clothing and flush the skin with water. Get medical attention promptly.
Breathing: RESPIRATORY SUPPORT - If a person breathes large amounts of this chemical, move the exposed person to fresh air at once. If breathing has stopped, perform artificial respiration. Keep the affected person warm and at rest. Get medical attention as soon as possible.
Swallow: MEDICAL ATTENTION IMMEDIATELY - If this chemical has been swallowed, get medical attention immediately. (NIOSH, 2024)
General First Aid:
· Call 911 or emergency medical service.
· Ensure that medical personnel are aware of the material(s) involved, take precautions to protect themselves and avoid contamination.
· Move victim to fresh air if it can be done safely.
· Administer oxygen if breathing is difficult.
· If victim is not breathing:
-- DO NOT perform mouth-to-mouth resuscitation; the victim may have ingestedor inhaled the substance.
-- If equipped and pulse detected, wash face and mouth, then give artificial respiration using a proper respiratory medical device (bag-valve mask, pocket mask equipped with a one-way valve or other device).
-- If no pulse detected or no respiratory medical device available, provide continuouscompressions. Conduct a pulse check every two minutes or monitor for any signs of spontaneous respirations.
· Remove and isolate contaminated clothing and shoes.
· For minor skin contact, avoid spreading material on unaffected skin.
· In case of contact with substance, remove immediately by flushing skin or eyes with running water for at least 20 minutes.
· For severe burns, immediate medical attention is required.
· Effects of exposure (inhalation, ingestion, or skin contact) to substance may be delayed.
· Keep victim calm and warm.
· Keep victim under observation.
· For further assistance, contact your local Poison Control Center.
· Note: Basic Life Support (BLS) and Advanced Life Support (ALS) should be done by trained professionals.
Specific First Aid:
· Wash skin with soap and water.
· In case of burns, immediately cool affected skin for as long as possible with cold water. Do not remove clothing if adhering to skin.
In Canada, an Emergency Response Assistance Plan (ERAP) may be required for this product. Please consult the shipping paper and/or the "ERAP" section.
(See general first aid procedures)
Eye: Irrigate immediately - If this chemical contacts the eyes, immediately wash (irrigate) the eyes with large amounts of water, occasionally lifting the lower and upper lids. Get medical attention immediately.
Skin: Water flush immediately - If this chemical contacts the skin, immediately flush the contaminated skin with water. If this chemical penetrates the clothing, immediately remove the clothing and flush the skin with water. Get medical attention promptly.
Breathing: Respiratory support
Swallow: Medical attention immediately - If this chemical has been swallowed, get medical attention immediately.
Excerpt from ERG Guide 129 [Flammable Liquids (Water-Miscible / Noxious)]:
CAUTION: The majority of these products have a very low flash point. Use of water spray when fighting fire may be inefficient.
SMALL FIRE: Dry chemical, CO2, water spray or alcohol-resistant foam. Do not use dry chemical extinguishers to control fires involving nitromethane (UN1261) or nitroethane (UN2842).
LARGE FIRE: Water spray, fog or alcohol-resistant foam. Avoid aiming straight or solid streams directly onto the product. If it can be done safely, move undamaged containers away from the area around the fire.
FIRE INVOLVING TANKS, RAIL TANK CARS OR HIGHWAY TANKS: Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles. Cool containers with flooding quantities of water until well after fire is out. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks in direct contact with flames. For massive fire, use unmanned master stream devices or monitor nozzles; if this is impossible, withdraw from area and let fire burn. (ERG, 2024)
· CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.
· Keep unauthorized personnel away.
· Stay upwind, uphill and/or upstream.
· Ventilate closed spaces before entering, but only if properly trained and equipped.
· ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area.
· All equipment used when handling the product must be grounded.
· Do not touch or walk through spilled material.
· Stop leak if you can do it without risk.
· Prevent entry into waterways, sewers, basements or confined areas.
· A vapor-suppressing foam may be used to reduce vapors.
· Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers.
· Use clean, non-sparking tools to collect absorbed material.
Large Spill
· Dike far ahead of liquid spill for later disposal.
· Water spray may reduce vapor, but may not prevent ignition in closed spaces.
Excerpt from ERG Guide 129 [Flammable Liquids (Water-Miscible / Noxious)]:
IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area for at least 50 meters (150 feet) in all directions.
LARGE SPILL: Consider initial downwind evacuation for at least 300 meters (1000 feet).
FIRE: If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2024)
Immediate precautionary measure
· Isolate spill or leak area for at least 50 meters (150 feet) in all directions.
Large Spill
· Consider initial downwind evacuation for at least 300 meters (1000 feet).
Fire
· If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions.
Excerpt from ERG Guide 129 [Flammable Liquids (Water-Miscible / Noxious)]:
ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. All equipment used when handling the product must be grounded. Do not touch or walk through spilled material. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. A vapor-suppressing foam may be used to reduce vapors. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. Use clean, non-sparking tools to collect absorbed material.
LARGE SPILL: Dike far ahead of liquid spill for later disposal. Water spray may reduce vapor, but may not prevent ignition in closed spaces. (ERG, 2024)
· Wear positive pressure self-contained breathing apparatus (SCBA).
· Structural firefighters' protective clothing provides thermal protection but only limited chemical protection.
1400.0 [ppm]
Excerpts from Documentation for IDLHs: Human data: The probable response to 100 ppm was predicted to be eye and mucous membrane irritation, difficulty breathing, headache, and vertigo [Shell 1957]. It has been stated that 5,000 ppm might be dangerous to life in 30 to 60 minutes [Smyth et al. 1942].
1400 ppm [10%LEL]
See: 141797
CAUTION: The majority of these products have a very low flash point. Use of water spray when fighting fire may be inefficient.
Small Fire
· Dry chemical, CO2, water spray or alcohol-resistant foam.
· Do not use dry chemical extinguishers to control fires involving nitromethane (UN1261) or nitroethane (UN2842).
Large Fire
· Water spray, fog or alcohol-resistant foam.
· Avoid aiming straight or solid streams directly onto the product.
· If it can be done safely, move undamaged containers away from the area around the fire.
Fire Involving Tanks, Rail Tank Cars or Highway Tanks
· Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles.
· Cool containers with flooding quantities of water until well after fire is out.
· Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank.
· ALWAYS stay away from tanks in direct contact with flames.
· For massive fire, use unmanned master stream devices or monitor nozzles; if this is impossible, withdraw from area and let fire burn.
Excerpt from NIOSH Pocket Guide for Mesityl oxide:
Skin: PREVENT SKIN CONTACT - Wear appropriate personal protective clothing to prevent skin contact.
Eyes: PREVENT EYE CONTACT - Wear appropriate eye protection to prevent eye contact.
Wash skin: WHEN CONTAMINATED - The worker should immediately wash the skin when it becomes contaminated.
Remove: WHEN WET (FLAMMABLE) - Work clothing that becomes wet should be immediately removed due to its flammability hazard (i.e., for liquids with a flash point <100 °F).
Change: No recommendation is made specifying the need for the worker to change clothing after the workshift.
Provide: QUICK DRENCH - Facilities for quickly drenching the body should be provided within the immediate work area for emergency use where there is a possibility of exposure. [Note: It is intended that these facilities provide a sufficient quantity or flow of water to quickly remove the substance from any body areas likely to be exposed. The actual determination of what constitutes an adequate quick drench facility depends on the specific circumstances. In certain instances, a deluge shower should be readily available, whereas in others, the availability of water from a sink or hose could be considered adequate.] (NIOSH, 2024)
(See personal protection and sanitation codes)
Skin: Prevent skin contact - Wear appropriate personal protective clothing to prevent skin contact.
Eyes: Prevent eye contact - Wear appropriate eye protection to prevent eye contact.
Wash skin: When contaminated
Remove: When wet (flammable)
Change: No recommendation
Provide: Quick drench - Facilities for quickly drenching the body should be provided within the immediate work area for emergency use where there is a possibility of exposure. [Note: It is intended that these facilities provide a sufficient quantity or flow of water to quickly remove the substance from any body areas likely to be exposed. The actual determination of what constitutes an adequate quick drench facility depends on the specific circumstances. In certain instances, a deluge shower should be readily available, whereas in others, the availability of water from a sink or hose could be considered adequate.]
NIOSH
Up to 250 ppm:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode
(APF = 25) Any powered, air-purifying respirator with organic vapor cartridge(s)
Up to 500 ppm:
(APF = 50) Any chemical cartridge respirator with a full facepiece and organic vapor cartridge(s)
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister
(APF = 50) Any powered, air-purifying respirator with a tight-fitting facepiece and organic vapor cartridge(s)
(APF = 50) Any self-contained breathing apparatus with a full facepiece
(APF = 50) Any supplied-air respirator with a full facepiece
Up to 1400 ppm:
(APF = 2000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
Emergency or planned entry into unknown concentrations or IDLH conditions:
(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus
Escape:
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister
Any appropriate escape-type, self-contained breathing apparatus
Ketones
Hydrocarbons, Aliphatic Unsaturated
Neurotoxin - Acute solvent syndrome
Occupational hepatotoxin - Secondary hepatotoxins: the potential for toxic effect in the occupational setting is based on cases of poisoning by human ingestion or animal experimentation.
Nephrotoxin - The chemical is potentially toxic to the kidneys in the occupational setting.
Dermatotoxin - Skin burns.
Lacrimator (Lachrymator) - A substance that irritates the eyes and induces the flow of tears.
Encephalopathy, chronic solvent [Category: Chronic Poisoning]
Solvents, acute toxic effect [Category: Acute Poisoning]
Patents are available for this chemical structure:
https://patentscope.wipo.int/search/en/result.jsf?inchikey=SHOJXDKTYKFBRD-UHFFFAOYSA-N
- Australian Industrial Chemicals Introduction Scheme (AICIS)3-Penten-2-one, 4-methyl-https://services.industrialchemicals.gov.au/search-inventory/
- CAMEO ChemicalsLICENSECAMEO Chemicals and all other CAMEO products are available at no charge to those organizations and individuals (recipients) responsible for the safe handling of chemicals. However, some of the chemical data itself is subject to the copyright restrictions of the companies or organizations that provided the data.https://cameochemicals.noaa.gov/help/reference/terms_and_conditions.htm?d_f=falseMESITYL OXIDEhttps://cameochemicals.noaa.gov/chemical/1067CAMEO Chemical Reactivity Classificationhttps://cameochemicals.noaa.gov/browse/react
- ILO-WHO International Chemical Safety Cards (ICSCs)
- CAS Common ChemistryLICENSEThe data from CAS Common Chemistry is provided under a CC-BY-NC 4.0 license, unless otherwise stated.https://creativecommons.org/licenses/by-nc/4.0/
- ChemIDplusChemIDplus Chemical Information Classificationhttps://pubchem.ncbi.nlm.nih.gov/source/ChemIDplus
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- EPA Chemicals under the TSCA3-Penten-2-one, 4-methyl-https://www.epa.gov/chemicals-under-tscaEPA TSCA Classificationhttps://www.epa.gov/tsca-inventory
- EPA DSSTox4-Methylpent-3-en-2-onehttps://comptox.epa.gov/dashboard/DTXSID1029170CompTox Chemicals Dashboard Chemical Listshttps://comptox.epa.gov/dashboard/chemical-lists/
- European Chemicals Agency (ECHA)LICENSEUse of the information, documents and data from the ECHA website is subject to the terms and conditions of this Legal Notice, and subject to other binding limitations provided for under applicable law, the information, documents and data made available on the ECHA website may be reproduced, distributed and/or used, totally or in part, for non-commercial purposes provided that ECHA is acknowledged as the source: "Source: European Chemicals Agency, http://echa.europa.eu/". Such acknowledgement must be included in each copy of the material. ECHA permits and encourages organisations and individuals to create links to the ECHA website under the following cumulative conditions: Links can only be made to webpages that provide a link to the Legal Notice page.https://echa.europa.eu/web/guest/legal-notice4-methylpent-3-en-2-onehttps://chem.echa.europa.eu/100.005.0024-methylpent-3-en-2-one (EC: 205-502-5)https://echa.europa.eu/information-on-chemicals/cl-inventory-database/-/discli/details/96893
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- Hazardous Substances Data Bank (HSDB)MESITYL OXIDEhttps://pubchem.ncbi.nlm.nih.gov/source/hsdb/1195
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- International Fragrance Association (IFRA)LICENSE(c) The International Fragrance Association, 2007-2021. All rights reserved.https://ifrafragrance.org/links/copyright4-Methyl-3-penten-2-onehttps://ifrafragrance.org/priorities/ingredients/ifra-transparency-list
- New Zealand Environmental Protection Authority (EPA)LICENSEThis work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International licence.https://www.epa.govt.nz/about-this-site/general-copyright-statement/
- NJDOH RTK Hazardous Substance List
- Occupational Safety and Health Administration (OSHA)LICENSEMaterials created by the federal government are generally part of the public domain and may be used, reproduced and distributed without permission. Therefore, content on this website which is in the public domain may be used without the prior permission of the U.S. Department of Labor (DOL). Warning: Some content - including both images and text - may be the copyrighted property of others and used by the DOL under a license.https://www.dol.gov/general/aboutdol/copyrightMESITYL OXIDEhttps://www.osha.gov/chemicaldata/264
- The National Institute for Occupational Safety and Health (NIOSH)LICENSEThe information provided using CDC Web site is only intended to be general summary information to the public. It is not intended to take the place of either the written law or regulations.https://www.cdc.gov/Other/disclaimer.html3-Penten-2-one, 4-methyl-https://www.cdc.gov/niosh-rtecs/SB401640.htmlMesityl oxidehttps://www.cdc.gov/niosh/npg/npgd0385.html
- Emergency Response Guidebook (ERG)Mesityl oxidehttps://pubchem.ncbi.nlm.nih.gov/erg/
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- ChEBI4-Methyl-3-penten-2-one, 9CIhttps://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:89993
- LOTUS - the natural products occurrence databaseLICENSEThe code for LOTUS is released under the GNU General Public License v3.0.https://lotus.nprod.net/Mesityl oxidehttps://www.wikidata.org/wiki/Q425668LOTUS Treehttps://lotus.naturalproducts.net/
- Toxin and Toxin Target Database (T3DB)LICENSET3DB is offered to the public as a freely available resource. Use and re-distribution of the data, in whole or in part, for commercial purposes requires explicit permission of the authors and explicit acknowledgment of the source material (T3DB) and the original publication.http://www.t3db.ca/downloads4-Methyl-3-penten-2-one, 9CIhttp://www.t3db.ca/toxins/T3D4894
- ChEMBLLICENSEAccess to the web interface of ChEMBL is made under the EBI's Terms of Use (http://www.ebi.ac.uk/Information/termsofuse.html). The ChEMBL data is made available on a Creative Commons Attribution-Share Alike 3.0 Unported License (http://creativecommons.org/licenses/by-sa/3.0/).http://www.ebi.ac.uk/Information/termsofuse.html
- Comparative Toxicogenomics Database (CTD)LICENSEIt is to be used only for research and educational purposes. Any reproduction or use for commercial purpose is prohibited without the prior express written permission of NC State University.http://ctdbase.org/about/legal.jspmesityl oxidehttps://ctdbase.org/detail.go?type=chem&acc=C008374
- EPA Chemical and Products Database (CPDat)4-Methylpent-3-en-2-onehttps://comptox.epa.gov/dashboard/DTXSID1029170#exposureEPA CPDat Classificationhttps://www.epa.gov/chemical-research/chemical-and-products-database-cpdat
- EU Food Improvement Agents4-Methylpent-3-en-2-onehttps://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32012R0872
- Hazardous Chemical Information System (HCIS), Safe Work Australia4-methylpent-3-en-2-onehttp://hcis.safeworkaustralia.gov.au/HazardousChemical/Details?chemicalID=3034
- NITE-CMC3-Penten-2-one, 4-methyl- (Mesityl oxide) - FY2006 (New/original classication)https://www.chem-info.nite.go.jp/chem/english/ghs/06-imcg-0734e.htmlMesityloxid (Mesityl oxide) - FY2014 (Revised classification)https://www.chem-info.nite.go.jp/chem/english/ghs/14-mhlw-2112e.html
- Regulation (EC) No 1272/2008 of the European Parliament and of the CouncilLICENSEThe copyright for the editorial content of this source, the summaries of EU legislation and the consolidated texts, which is owned by the EU, is licensed under the Creative Commons Attribution 4.0 International licence.https://eur-lex.europa.eu/content/legal-notice/legal-notice.html4-methylpent-3-en-2-one; mesityl oxidehttps://eur-lex.europa.eu/eli/reg/2008/1272/oj
- FDA Substances Added to FoodLICENSEUnless otherwise noted, the contents of the FDA website (www.fda.gov), both text and graphics, are not copyrighted. They are in the public domain and may be republished, reprinted and otherwise used freely by anyone without the need to obtain permission from FDA. Credit to the U.S. Food and Drug Administration as the source is appreciated but not required.https://www.fda.gov/about-fda/about-website/website-policies#linking
- Flavor and Extract Manufacturers Association (FEMA)4-METHYL-3-PENTEN-2-ONEhttps://www.femaflavor.org/flavor-library/4-methyl-3-penten-2-one
- FooDBLICENSEFooDB is offered to the public as a freely available resource. Use and re-distribution of the data, in whole or in part, for commercial purposes requires explicit permission of the authors and explicit acknowledgment of the source material (FooDB) and the original publication.https://foodb.ca/about4-Methyl-3-penten-2-one, 9CIhttps://foodb.ca/compounds/FDB008178
- MassBank Europe
- MassBank of North America (MoNA)LICENSEThe content of the MoNA database is licensed under CC BY 4.0.https://mona.fiehnlab.ucdavis.edu/documentation/license
- NIST Mass Spectrometry Data CenterLICENSEData covered by the Standard Reference Data Act of 1968 as amended.https://www.nist.gov/srd/public-law3-Penten-2-one, 4-methyl-http://www.nist.gov/srd/nist1a.cfm
- SpectraBase3-PENTEN-2-ONE, 4-METHYL-https://spectrabase.com/spectrum/Gqj8Q7Fw54U3-PENTEN-2-ONE, 4-METHYL-https://spectrabase.com/spectrum/5P4dPk1tXzY4-Methyl-3 -penten-2-onehttps://spectrabase.com/spectrum/6pys8TH6OiVMesityl oxidehttps://spectrabase.com/spectrum/Ako1NxZudC14-Methyl-3 -penten-2-onehttps://spectrabase.com/spectrum/D1oXSgqi39B3-PENTEN-2-ONE, 4-METHYL-https://spectrabase.com/spectrum/G1myh284uhZ4-Methyl-3 -penten-2-onehttps://spectrabase.com/spectrum/Fe6mGnXEpfD4-Methyl-3 -penten-2-onehttps://spectrabase.com/spectrum/HejVD0uo13s4-Methyl-3 -penten-2-onehttps://spectrabase.com/spectrum/48SGuGMF5KI3-Penten-2-one, 4-methyl-https://spectrabase.com/spectrum/51KiR9DLdIdMESITYLOXIDEhttps://spectrabase.com/spectrum/1HVOUPYV1Ee4-METHYL-3-PENTEN-2-ONE;MESITYLOXIDhttps://spectrabase.com/spectrum/5NIrSFs8Rzc4-Methyl-3 -penten-2-onehttps://spectrabase.com/spectrum/IL6CffCwr8b4-Methyl-3 -penten-2-onehttps://spectrabase.com/spectrum/9C1f29rEAsw4-Methyl-3 -penten-2-onehttps://spectrabase.com/spectrum/LjncJ3Lnt7r3-Penten-2-one, 4-methyl-https://spectrabase.com/spectrum/BfPgVKHfz6K3-Penten-2-one, 4-methyl-https://spectrabase.com/spectrum/9pVO7KgVXKO
- IUPAC Digitized pKa DatasetMesityl oxidehttps://github.com/IUPAC/Dissociation-Constants
- Japan Chemical Substance Dictionary (Nikkaji)
- KNApSAcK Species-Metabolite Database4-Methyl 3-penten-2-onehttp://www.knapsackfamily.com/knapsack_core/info.php?sname=C_ID&word=C00051541
- Natural Product Activity and Species Source (NPASS)4-Methylpent-3-En-2-Onehttps://bidd.group/NPASS/compound.php?compoundID=NPC266979
- LIPID MAPS4-Methyl-3-penten-2-onehttps://lipidmaps.org/databases/lmsd/LMFA12000030Lipid Classificationhttps://www.lipidmaps.org/
- Metabolomics Workbench4-Methyl-3-penten-2-one, 9CIhttps://www.metabolomicsworkbench.org/data/StructureData.php?RegNo=5436
- NIOSH Manual of Analytical MethodsLICENSEThe information provided using CDC Web site is only intended to be general summary information to the public. It is not intended to take the place of either the written law or regulations.https://www.cdc.gov/Other/disclaimer.html
- NMRShiftDB
- NORMAN Suspect List ExchangeLICENSEData: CC-BY 4.0; Code (hosted by ECI, LCSB): Artistic-2.0https://creativecommons.org/licenses/by/4.0/NORMAN Suspect List Exchange Classificationhttps://www.norman-network.com/nds/SLE/
- Springer Nature
- SpringerMaterials4-Methyl-pent-3-en-2-onehttps://materials.springer.com/substanceprofile/docs/smsid_wdldryneejtvvxbq
- Thieme ChemistryLICENSEThe Thieme Chemistry contribution within PubChem is provided under a CC-BY-NC-ND 4.0 license, unless otherwise stated.https://creativecommons.org/licenses/by-nc-nd/4.0/
- Wikidatamesityl oxidehttps://www.wikidata.org/wiki/Q425668
- WikipediaTigecyclinehttps://en.wikipedia.org/wiki/TigecyclineMesityl oxidehttps://en.wikipedia.org/wiki/Mesityl_oxide
- Wiley
- PubChem
- Medical Subject Headings (MeSH)LICENSEWorks produced by the U.S. government are not subject to copyright protection in the United States. Any such works found on National Library of Medicine (NLM) Web sites may be freely used or reproduced without permission in the U.S.https://www.nlm.nih.gov/copyright.htmlmesityl oxidehttps://www.ncbi.nlm.nih.gov/mesh/67008374
- GHS Classification (UNECE)GHS Classification Treehttp://www.unece.org/trans/danger/publi/ghs/ghs_welcome_e.html
- EPA Substance Registry ServicesEPA SRS List Classificationhttps://sor.epa.gov/sor_internet/registry/substreg/LandingPage.do
- MolGenieMolGenie Organic Chemistry Ontologyhttps://github.com/MolGenie/ontology/
- PATENTSCOPE (WIPO)SID 403031958https://pubchem.ncbi.nlm.nih.gov/substance/403031958