2-Methylpyridine
- C6H7N
- C5H4N(CH3)
- 2-METHYLPYRIDINE
- 2-Picoline
- 109-06-8
- o-Picoline
- alpha-Picoline
- Create:2004-09-16
- Modify:2024-12-14
C6H7N
C5H4N(CH3)
- 2-methylpyridine
- 2-picoline
- 2-picolinium bromide
- 2-METHYLPYRIDINE
- 2-Picoline
- 109-06-8
- o-Picoline
- alpha-Picoline
- Pyridine, 2-methyl-
- Picoline
- METHYLPYRIDINE
- 2-METHYL-PYRIDINE
- a-picoline
- o-Methylpyridine
- .alpha.-Picoline
- alpha-Methylpyridine
- RCRA waste number U191
- 1333-41-1
- PICOLINE, ALPHA
- 2-Mepy
- NSC 3409
- .alpha.-Methylpyridine
- CCRIS 1721
- HSDB 101
- EINECS 203-643-7
- UN2313
- AI3-2409
- DTXSID9021899
- UNII-3716Q16Q6A
- CHEBI:50415
- AI3-24109
- NSC-3409
- DTXCID001899
- .ALPHA.-PICOLINE [MI]
- 2-METHYLPYRIDINE [HSDB]
- EC 203-643-7
- Pyridine, methyl-
- 3716Q16Q6A
- NCGC00160644-01
- AMPROLIUM HYDROCHLORIDE IMPURITY A [EP IMPURITY]
- CAS-109-06-8
- MFCD00006332
- RCRA waste no. U191
- AMPROLIUM HYDROCHLORIDE IMPURITY A (EP IMPURITY)
- alphaPicoline
- oPicoline
- 2methylpyridine
- methyl pyridine
- Alpha picoline
- 2-methylpridine
- alphaMethylpyridine
- 2--picoline
- 2-Methyl pyridine
- Pyridine, 2methyl
- Picoline, .alpha.
- 2-picolinium bromide
- 2-Picoline, 98%
- ?-METHYLPYRIDINE
- 2-Methylpyridine, 98%
- NCIOpen2_007826
- NCIOpen2_007919
- WLN: T6NJ B1
- BIDD:ER0295
- CHEMBL15732
- 2-Picoline, analytical standard
- RRCA WASTE NUMBER U191
- NSC3409
- 2-Picoline,(S);2-Methylpyridine
- BCP26524
- Tox21_111951
- Tox21_201693
- STL268873
- AKOS000119190
- NCGC00160644-02
- NCGC00259242-01
- AI324109
- DB-023694
- o-Picoline [UN2313] [Flammable liquid]
- Pyridine-2,3,4,5-d4,6-(methyl-d3)-
- NS00005757
- P0415
- EN300-19108
- A15108
- 2-Methylpyridine, Lonza quality, >=99.0% (GC)
- J-510091
- Q2216745
- F0001-0192
- Z104472800
- 2-Methylpyridine pound>>o-Picoline pound>>Pyridine, 2-methyl-
- 38762-42-4
Odor Threshold Low: 0.01 [mmHg]
Odor Threshold High: 0.45 [mmHg]
[ICSC] Odor threshold low = 0.05 mg/m3
- 15N nuclear magnetic resonance spectrum
- Boiling point
- Chemical shift
- Critical point
- Crystal structure
- Density
- Diamagnetic susceptibility
- Dielectric constant
- Excess enthalpy
- Formula unit
- Fusion temperature
- Heat of solution
- Heat of sublimation
- Hindering potential
- Magnetic susceptibility
- Melting temperature
- Mixing enthalpy
- Molecular structure
- Moment of inertia
- Nuclear magnetic resonance
- Nuclear quadrupole coupling
- Nuclear quadrupole moment
- Nuclear quadrupole resonance spectroscopy
- Optical coefficient
- Phase diagram
- Phase equilibrium
- Phase transition
- Quadrupole coupling
- Refractive index
- Rotational excitation cross section
- Sound absorption
- Sound propagation
- Sound velocity
- Space group
- Spin-spin coupling constant
- Surface tension
- Transition enthalpy
- Unit cell
- Unit cell parameter
- Vapor pressure
- Vapor-liquid equilibrium
- Vibrational mode frequency
- Virial coefficient
- Viscosity
93.0 99.99
66.0 39.32
92.0 20.36
65.0 14.50
78.0 14.42
93.0 99.99
66.0 39.50
39.0 33
92.0 19.40
78.0 17.80
93 999
66 395
39 330
92 194
78 178
2019: 1,000,000 lb - <20,000,000 lb
2018: 1,000,000 lb - <20,000,000 lb
2017: 1,000,000 lb - <20,000,000 lb
2016: 20,000,000 lb - <100,000,000 lb
- Pharmaceutical and Medicine Manufacturing
- Pesticide, Fertilizer, and Other Agricultural Chemical Manufacturing
H226 (100%): Flammable liquid and vapor [Warning Flammable liquids]
H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]
H311 (47.1%): Toxic in contact with skin [Danger Acute toxicity, dermal]
H312 (52.9%): Harmful in contact with skin [Warning Acute toxicity, dermal]
H314 (36.1%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
H319 (91%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
H331 (48.6%): Toxic if inhaled [Danger Acute toxicity, inhalation]
H332 (54.6%): Harmful if inhaled [Warning Acute toxicity, inhalation]
H335 (98.3%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
P210, P233, P240, P241, P242, P243, P260, P261, P262, P264, P264+P265, P270, P271, P280, P301+P317, P301+P330+P331, P302+P352, P302+P361+P354, P303+P361+P353, P304+P340, P305+P351+P338, P305+P354+P338, P316, P317, P319, P321, P330, P337+P317, P361+P364, P362+P364, P363, 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 346 reports by companies from 19 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. 3 (47.1%)
Acute Tox. 4 (52.9%)
Skin Corr. 1C (36.1%)
Eye Irrit. 2 (91%)
Acute Tox. 3 (48.6%)
Acute Tox. 4 (54.6%)
STOT SE 3 (98.3%)
Flammable liquid - category 3
Acute toxicity - category 4
Acute toxicity - category 4
Acute toxicity - category 4
Specific target organ toxicity (single exposure) - category 3
Eye irritation - category 2
Special Hazards of Combustion Products: When heated to decompo- sition, emits toxic fumes of cyanide.
Behavior in Fire: Heat may cause pressure buildup in closed containers. Use water to keep container cool. (USCG, 1999)
EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.
SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.
INHALATION: IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used; if not available, use a level of protection greater than or equal to that advised under Protective Clothing.
INGESTION: DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. Be prepared to transport the victim to a hospital if advised by a physician. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport the victim to a hospital. (NTP, 1992)
INHALATION: CALL FOR MEDICAL AID. Remove victim to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
EYES: Flush with copious amounts of water for at least 15 minutes. Assure adequate flushing of the eyes by separating eyelids with fingers.
SKIN: Flush with copious amounts of water for at least 15 minutes while removing contaminated clothing and shoes. (USCG, 1999)
Fire Extinguishing Agents Not to Be Used: Water may be ineffective.
Fire Extinguishing Agents: Carbon dioxide, dry chemical or "alcohol" foam. (USCG, 1999)
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)
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)
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)
Status: Active Update: 17-10-2018 https://echa.europa.eu/registration-dossier/-/registered-dossier/17685
Status: Active Update: 17-05-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/17275
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.
Dermatotoxin - Skin burns.
Neurotoxin - Other CNS neurotoxin
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.
Dermatotoxin - Skin burns.
Patents are available for this chemical structure:
https://patentscope.wipo.int/search/en/result.jsf?inchikey=BSKHPKMHTQYZBB-UHFFFAOYSA-N
- Australian Industrial Chemicals Introduction Scheme (AICIS)Pyridine, 2-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=false2-METHYLPYRIDINEhttps://cameochemicals.noaa.gov/chemical/8856CAMEO 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/4.0/2-Methylpyridinehttps://commonchemistry.cas.org/detail?cas_rn=109-06-8Pyridine, 2-methyl-, radical ion(1+)https://commonchemistry.cas.org/detail?cas_rn=38762-42-4Methylpyridinehttps://commonchemistry.cas.org/detail?cas_rn=1333-41-1
- ChemIDplusChemIDplus Chemical Information Classificationhttps://pubchem.ncbi.nlm.nih.gov/source/ChemIDplus
- DTP/NCILICENSEUnless otherwise indicated, all text within NCI products is free of copyright and may be reused without our permission. Credit the National Cancer Institute as the source.https://www.cancer.gov/policies/copyright-reuse
- EPA Chemical Data Reporting (CDR)LICENSEThe U.S. Government retains a nonexclusive, royalty-free license to publish or reproduce these documents, or allow others to do so, for U.S. Government purposes. These documents may be freely distributed and used for non-commercial, scientific and educational purposes.https://www.epa.gov/web-policies-and-procedures/epa-disclaimers#copyrightPyridine, 2-methyl-https://www.epa.gov/chemical-data-reporting
- EPA Chemicals under the TSCAPyridine, 2-methyl-https://www.epa.gov/chemicals-under-tscaEPA TSCA Classificationhttps://www.epa.gov/tsca-inventory
- EPA DSSTox2-Methylpyridinehttps://comptox.epa.gov/dashboard/DTXSID9021899CompTox 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-notice2-methylpyridinehttps://chem.echa.europa.eu/100.003.3132-methylpyridine (EC: 203-643-7)https://echa.europa.eu/information-on-chemicals/cl-inventory-database/-/discli/details/54630
- FDA Global Substance Registration System (GSRS)LICENSEUnless 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.ALPHA.-PICOLINEhttps://gsrs.ncats.nih.gov/ginas/app/beta/substances/3716Q16Q6A
- Hazardous Substances Data Bank (HSDB)2-METHYLPYRIDINEhttps://pubchem.ncbi.nlm.nih.gov/source/hsdb/101METHYLPYRIDINEShttps://pubchem.ncbi.nlm.nih.gov/source/hsdb/5819
- Human Metabolome Database (HMDB)LICENSEHMDB 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 (HMDB) and the original publication (see the HMDB citing page). We ask that users who download significant portions of the database cite the HMDB paper in any resulting publications.http://www.hmdb.ca/citing2-Methylpyridinehttp://www.hmdb.ca/metabolites/HMDB0061888HMDB0061888_cms_102497https://hmdb.ca/metabolites/HMDB0061888#spectra
- 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
- Risk Assessment Information System (RAIS)LICENSEThis work has been sponsored by the U.S. Department of Energy (DOE), Office of Environmental Management, Oak Ridge Operations (ORO) Office through a joint collaboration between United Cleanup Oak Ridge LLC (UCOR), Oak Ridge National Laboratory (ORNL), and The University of Tennessee, Ecology and Evolutionary Biology, The Institute for Environmental Modeling (TIEM). All rights reserved.https://rais.ornl.gov/Picoline, 2-https://rais.ornl.gov/cgi-bin/tools/TOX_search
- Haz-Map, Information on Hazardous Chemicals and Occupational DiseasesLICENSECopyright (c) 2022 Haz-Map(R). All rights reserved. Unless otherwise indicated, all materials from Haz-Map are copyrighted by Haz-Map(R). No part of these materials, either text or image may be used for any purpose other than for personal use. Therefore, reproduction, modification, storage in a retrieval system or retransmission, in any form or by any means, electronic, mechanical or otherwise, for reasons other than personal use, is strictly prohibited without prior written permission.https://haz-map.com/AboutMethylpyridinehttps://haz-map.com/Agents/14962-Picolinehttps://haz-map.com/Agents/3142
- ChEBI2-methylpyridinehttps://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:50415
- LOTUS - the natural products occurrence databaseLICENSEThe code for LOTUS is released under the GNU General Public License v3.0.https://lotus.nprod.net/2-Methylpyridinehttps://www.wikidata.org/wiki/Q2216745LOTUS Treehttps://lotus.naturalproducts.net/
- Yeast Metabolome Database (YMDB)2-methylpyridinehttps://www.ymdb.ca/compounds/YMDB01458
- 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.htmlChEMBL Protein Target Treehttps://www.ebi.ac.uk/chembl/g/#browse/targets
- 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.jsp
- Crystallography Open Database (COD)LICENSEAll data in the COD and the database itself are dedicated to the public domain and licensed under the CC0 License. Users of the data should acknowledge the original authors of the structural data.https://creativecommons.org/publicdomain/zero/1.0/
- The Cambridge Structural Database
- EPA Chemical and Products Database (CPDat)2-Methylpyridinehttps://comptox.epa.gov/dashboard/DTXSID9021899#exposureEPA CPDat Classificationhttps://www.epa.gov/chemical-research/chemical-and-products-database-cpdat
- EU Food Improvement Agents
- Hazardous Chemical Information System (HCIS), Safe Work Australia
- NITE-CMC2-methylpyridine; 2-picoline - FY2008 (New/original classication)https://www.chem-info.nite.go.jp/chem/english/ghs/08-mhlw-0162e.html2-Methylpyridine (2-Picoline) - FY2018 (Revised classification)https://www.chem-info.nite.go.jp/chem/english/ghs/18-mhlw-2021e.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.html2-methylpyridine; 2-picolinehttps://eur-lex.europa.eu/eli/reg/2008/1272/oj
- 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/about2-Methylpyridinehttps://foodb.ca/compounds/FDB004399
- IUPAC Digitized pKa Datasetpyridine, 2-methyl-https://github.com/IUPAC/Dissociation-Constants
- NMRShiftDB
- 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-lawPyridine, 2-methyl-http://www.nist.gov/srd/nist1a.cfm
- SpectraBasePYRIDINE, 2-METHYL-https://spectrabase.com/spectrum/I1zXDIeTO7FPYRIDINE, 2-METHYL-https://spectrabase.com/spectrum/Alq0RJiH2z2PYRIDINE, 2-METHYL-https://spectrabase.com/spectrum/99uBEsJuO92-PICOLINE (98.7%)https://spectrabase.com/spectrum/FPLJSTWW8dy2-Methylpyridinehttps://spectrabase.com/spectrum/IbRTMVLsqRK2-Methylpyridinhttps://spectrabase.com/spectrum/Et2lb2uTHJL2-METHYLPYRIDINEhttps://spectrabase.com/spectrum/FwFhpbYYMUr2-METHYLPYRIDINE;2-PICOLINEhttps://spectrabase.com/spectrum/KAg820lLA7oα-Picolinehttps://spectrabase.com/spectrum/2tX7lnzFXq62-Methylpyridinehttps://spectrabase.com/spectrum/ER3u2JdZCwYPyridine, 2-methyl-https://spectrabase.com/spectrum/FVm4CQ5zHdiPyridine, 2-methyl-https://spectrabase.com/spectrum/Ez0WeTUtUBq2-Methylpyridinehttps://spectrabase.com/spectrum/8oevN6x3QxY
- Japan Chemical Substance Dictionary (Nikkaji)
- KEGGLICENSEAcademic users may freely use the KEGG website. Non-academic use of KEGG generally requires a commercial licensehttps://www.kegg.jp/kegg/legal.html
- KNApSAcK Species-Metabolite Database
- Natural Product Activity and Species Source (NPASS)2-Methylpyridinehttps://bidd.group/NPASS/compound.php?compoundID=NPC231655
- Kruve Lab, Ionization & Mass Spectrometry, Stockholm University2-methylpyridine
- Metabolomics Workbench
- Nature Chemistry
- NORMAN Suspect List ExchangeLICENSEData: CC-BY 4.0; Code (hosted by ECI, LCSB): Artistic-2.0https://creativecommons.org/licenses/by/4.0/PicoplatinNORMAN Suspect List Exchange Classificationhttps://www.norman-network.com/nds/SLE/
- Springer Nature
- SpringerMaterials
- 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/
- Wikidataα-picolinehttps://www.wikidata.org/wiki/Q2216745
- Wikipedia4,4'-Difluorobenzophenonehttps://en.wikipedia.org/wiki/4,4'-Difluorobenzophenone2-Methylpyridinehttps://en.wikipedia.org/wiki/2-Methylpyridine
- 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.html
- 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 403029604https://pubchem.ncbi.nlm.nih.gov/substance/403029604