Methionine
- L-methionine
- 63-68-3
- methionine
- h-Met-oh
- (S)-2-Amino-4-(methylthio)butanoic acid
- Create:2004-09-16
- Modify:2025-01-18
- L-Isomer Methionine
- L-Methionine
- Liquimeth
- Methionine
- Methionine, L Isomer
- Methionine, L-Isomer
- Pedameth
- L-methionine
- 63-68-3
- methionine
- h-Met-oh
- (S)-2-Amino-4-(methylthio)butanoic acid
- Cymethion
- L-(-)-Methionine
- S-Methionine
- Liquimeth
- Neo-methidin
- L-Methioninum
- Methilanin
- (L)-Methionine
- metionina
- Acimethin
- (S)-methionine
- Methionine (VAN)
- Methioninum
- Metionina [DCIT]
- L-Methionin
- (2S)-2-amino-4-(methylsulfanyl)butanoic acid
- L-alpha-Amino-gamma-methylmercaptobutyric acid
- h-Met-h
- Methioninum [INN-Latin]
- L-Homocysteine, S-methyl-
- met
- CCRIS 5528
- CCRIS 5536
- HSDB 4317
- L(-)-Amino-gamma-methylthiobutyric acid
- L-Met
- L-alpha-Amino-gamma-methylthiobutyric acid
- L-gamma-Methylthio-alpha-aminobutyric acid
- (2S)-2-Amino-4-methylsulfanylbutanoic acid
- L-Methionine-35S
- METHIONINE, L-
- 2-Amino-4-methylthiobutanoic acid (S)-
- UNII-AE28F7PNPL
- AE28F7PNPL
- Toxin WAR (Bacillus thuringiensis strain PS205C)
- 2-Amino-4-(methylthio)butyric acid, (S)-
- EINECS 200-562-9
- MFCD00063097
- NSC 22946
- Butanoic acid, 2-amino-4-(methylthio)-, (S)-
- (S)-2-amino-4-(methylthio)butyric acid
- CHEBI:16643
- L-a-Amino-g-methylthiobutyric acid
- carbon-11 methionine
- S-Methyl-L-homocysteine
- (S)-(+)-Methionine
- NSC-22946
- gamma-Methylthio-alpha-aminobutyric acid
- L-2-Amino-4-(methylthio)butanoic acid
- CHEMBL42336
- 3654-96-4
- DTXSID5040548
- L-2-Amino-4methylthiobutyric acid
- Methionine [USAN:USP:INN:BAN]
- meritonin
- METHIONINE (II)
- METHIONINE [II]
- Methioninum (INN-Latin)
- (S)-2-Amino-4-(methylmercapto)butyric acid
- METHIONINE (MART.)
- METHIONINE [MART.]
- Hmet
- 1006386-95-3
- METHIONINE (EP MONOGRAPH)
- METHIONINE [EP MONOGRAPH]
- METHIONINE (USP MONOGRAPH)
- METHIONINE [USP MONOGRAPH]
- Methionine (USAN:USP:INN:BAN)
- Methionine [USAN:INN]
- (2S)-2-amino-4-methylsulfanyl-butanoic acid
- C-11 Methionine
- 58576-49-1
- l-2-Amino-4-(methylthio)butyric acid
- (2S)-2-amino-4-(methylsulfanyl)butanoate
- C-11 Met
- L-Lobamine
- 3h-l-methionine
- g-Methylthio-a-aminobutyric acid
- racemic methionine
- 1wkm
- Toxin WAR
- (35S)Methionine
- Methionine (USP)
- a-Amino-g-methylmercaptobutyric acid
- methioninum racemicum
- L-Methionine,(S)
- 1pg2
- 1qq9
- L-Methionine Z (TN)
- METHIONINE [MI]
- L-Methionine (JP18)
- L-Methionine (Standard)
- METHIONINE [INN]
- METHIONINE [HSDB]
- METHIONINE [USAN]
- Methionine (L-Methionine)
- METHIONINE [VANDF]
- Methionine, L- (8CI)
- bmse000044
- bmse000915
- L-METHIONINE [FCC]
- L-METHIONINE [JAN]
- SCHEMBL4226
- G-methylthio-a-aminobutyrate
- L-Methionine (H-Met-OH)
- METHIONINE [WHO-DD]
- 2-Amino-4-methylthiobutanoate
- L-a-amino-g-methylthiobutyrate
- L-METHIONINE [USP-RS]
- GTPL4814
- A-amino-g-methylmercaptobutyrate
- IS_METHIONINE-METHYL-D3
- 2-Amino-4-(methylthio)butyrate
- DTXCID3020548
- SCHEMBL15702352
- HY-N0326R
- V03AB26
- Pharmakon1600-01301006
- alpha-amino-alpha-aminobutyric acid
- gamma-methylthio-alpha-aminobutyrate
- HY-N0326
- L-2-Amino-4-methylthiobutyric acid
- BDBM50142500
- MFCD00801344
- NSC760117
- s5633
- L-alpha-amino-gamma-methylthiobutyrate
- L-Methionine, Vetec(TM), 98.5%
- (S)-2-Amino-4-(methylthio)butanoate
- AKOS000281626
- AKOS015852512
- butanoic acid, 2-amino-4-methylthio-
- L-Methionine, labeled with carbon-11
- alpha-amino-gamma-methylmercaptobutyrate
- CCG-266196
- CS-W020566
- DB00134
- NSC-760117
- (S)-2-amino-4-(methylthio)-Butanoate
- LEUCINE IMPURITY B [EP IMPURITY]
- NCGC00160620-01
- NCGC00160620-02
- AS-10898
- BP-31235
- (S)-2-amino-4-(methylthio)-Butanoic acid
- DB-029971
- L-Methionine, BioUltra, >=99.5% (NT)
- M0099
- NS00068567
- EN300-52631
- L-Methionine, SAJ special grade, >=98.5%
- C00073
- D00019
- D70895
- L(-)-amino-alpha-amino-alpha-aminobutyric acid
- L-Methionine, reagent grade, >=98% (HPLC)
- M-3100
- M02945
- SBI-0633443.0002
- L-Methionine, Vetec(TM) reagent grade, >=98%
- L-Methionine, Cell Culture Reagent (H-L-Met-OH)
- BRD-K06502269-001-02-6
- C6CB5837-2B49-4B25-AAB0-D305DAFE26EB
- Q22124685
- F1905-8241
- Z756440050
- L-Methionine, certified reference material, TraceCERT(R)
- Methionine, European Pharmacopoeia (EP) Reference Standard
- N-(2CT Resin)-L-Met-OH (200-400 mesh, > 0.3 mmol/g)
- L-Methionine, United States Pharmacopeia (USP) Reference Standard
- L-Methionine, Pharmaceutical Secondary Standard; Certified Reference Material
- Soft tissue sarcoma-associated protein (human clone WO2004048938-SEQID-1139)
- L-Methionine, from non-animal source, meets EP, JP, USP testing specifications, suitable for cell culture, 99.0-101.0%
133.65 Ų [M+H]+ [CCS Type: DT; Method: stepped-field]
152.05 Ų [M-H]- [CCS Type: DT; Method: stepped-field]
133.1 Ų [M+H]+ [CCS Type: DT; Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]
132 Ų [M-H]- [CCS Type: DT; Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]
132.9 Ų [M+H]+
133.6 Ų [M+H]+
140.5 Ų [M-H]-
104.0 1
131.0 0.22
130.0 0.18
221.0 0.12
116.0 0.11
176.0 1
128.0 0.88
177.0 0.15
100.0 0.12
129.0 0.12
61.01049 100
56.04918 97
74.02289 13.30
44.97952 9.20
102.05554 5.50
46.99551 100
57.72199 2.40
61.0103 999
56.0491 917
87.0256 70
104.0508 62
84.044 34
56.0495 999
61.0103 625
104.0522 548
133.0301 426
150.0569 150
176.1 999
128.1 647
147.1 152
177.1 135
219.1 117
- Zinc methionine sulfate (is active moiety of)
- Alanine; arginine; glycine; histidine; isoleucine; leucine; lysine hydrochloride; methionine; phenylalanine; proline; serine; threonine; tryptophan; tyrosine; valine (component of)
- Alanine; arginine; dextrose; glycine; histidine; isoleucine; leucine; lysine; methionine; phenylalanine; proline; serine; threonine; tryptophan; tyrosine; valine (component of)
- Alanine; arginine; aspartic acid; glutamic acid; glycine; histidine; isoleucine; leucine; lysine acetate; methionine; phenylalanine; proline; serine; threonine; tryptophan; tyrosine; valine (component of)
- Alanine; arginine; aspartic acid; glutamic acid; glycine; histidine; isoleucine; leucine; lysine acetate; methionine; phenylalanine; proline; serine; taurine; threonine; tryptophan; tyrosine; valine (component of)
- Alanine; arginine; aspartic acid; cysteine hydrochloride; glutamic acid; glycine; histidine; isoleucine; leucine; lysine acetate; methionine; phenylalanine; proline; serine; taurine; threonine; tryptophan; tyrosine; valine (component of)
- Acetyl L-tyrosine; alanine; arginine; aspartic acid; cysteine hydrochloride; glutamic acid; glycine; histidine; isoleucine; leucine; lysine acetate; methionine; phenylalanine; proline; serine; taurine; threonine; tryptophan; tyrosine; valine (component of)
- Alanine; arginine; calcium chloride; dextrose; glycine; histidine; isoleucine; leucine; lysine; magnesium chloride; methionine; phenylalanine; potassium phosphate, dibasic; proline; serine; sodium acetate; sodium chloride; threonine; tryptophan; tyrosine; valine (component of)
- alpha-KETOGLUTARIC ACID; alpha-LIPOIC ACID; alpha-TOCOPHEROL; gamma-AMINOBUTYRIC ACID; ACETALDEHYDE; ALFALFA; ASCORBYL PALMITATE; BARLEY; COBALT; CYSTEINE; FUCUS VESICULOSUS; GLUTATHIONE; IRON; MAGNESIUM FLUORIDE; MANGANESE GLUCONATE; METHIONINE; N,N-DIMETHYLGLYCINE; NASTURTIUM OFFICINALE; ORYZA SATIVA WHOLE; QUERCETIN; RAPHANUS SATIVUS; SELENIUM; SODIUM SELENITE; UBIDECARENONE; WHEAT; ZINC; ZINC PICOLINATE (component of)
- Aesculus hippocastanum flower; alanine; aminobenzoic acid; betaine hydrochloride; biotin; borrelia burgdorferi; bromelains; candida albicans; cholecalciferol; choline hydroxide; coconut oil; copper; cranberry; cysteine; cystine; dopamine hydrochloride; fragaria vesca fruit; glutamic acid; glutamine; hippeastrum puniceum whole; ilex aquifolium flowering top; lemon juice; lithium bromide; lysine; malus domestica flower; methionine; niacinamide; oxitriptan; oxytocin; phenylalanine; potassium gluconate; pumpkin seed; racemethionine; rheum palmatum root; selenium; selenium dioxide; serine; serotonin hydrochloride; squalene; stillingia sylvatica root; sus scrofa thymus; sus scrofa thyroid; thiamine hydrochloride; ubidecarenone; zinc gluconate (component of)
- Aluminum; antimony trisulfide; arctium lappa root; arsenic trioxide; barium carbonate; berberis vulgaris root bark; beryllium; bismuth; boron; bromine; cadmium; cerium; cesium; chromium; cobalt; copper; dysprosium; erbium; europium; frangula alnus bark; gadolinium; garlic; germanium sesquioxide; glycyrrhiza glabra; gold; holmium; iridium; iron; lanthanum; lead; lithium carbonate; lycopodium clavatum spore; magnesium; manganese; mercurius solubilis; methionine; molybdenum; neodymium oxide; nickel; niobium; osmium; palladium; phytolacca americana root; platinum; praseodymium; rhodium; rubidium nitrite; samarium; selenium; selenium dioxide; silver; stillingia sylvatica root; strontium carbonate; strychnos nux-vomica seed; sus scrofa thyroid; tantalum; terbium; thallium; tin; trifolium pratense flower; uranyl nitrate hexahydrate; vanadium; ytterbium oxide; zinc (component of)
- Fibroblasts
- Kidney
- Liver
- Pancreas
- Placenta
- Prostate
- Skeletal Muscle
- Spleen
- 3-Phosphoglycerate dehydrogenase deficiency
- Amikacin Action Pathway
- Arbekacin Action Pathway
- Azithromycin Action Pathway
- Chloramphenicol Action Pathway
- Clarithromycin Action Pathway
- Clindamycin Action Pathway
- Clomocycline Action Pathway
- Cystathionine Beta-Synthase Deficiency
- Demeclocycline Action Pathway
- Total 50 pathways, visit the HMDB page for details
Use (kg; approx.) in Germany (2009): >25000
Consumption (g per capita; approx.) in Germany (2009): 0.305
Calculated removal (%): 92.1
Information on 5 consumer products that contain Methionine in the following categories is provided:
• Personal Care
2018: <1,000,000 lb
2017: <1,000,000 lb
2016: <1,000,000 lb
Not Classified
Reported as not meeting GHS hazard criteria by 206 of 211 companies (only 2.4% companies provided GHS information). For more detailed information, please visit ECHA C&L website.
Aggregated GHS information provided per 211 reports by companies from 7 notifications to the ECHA C&L Inventory.
Reported as not meeting GHS hazard criteria per 206 of 211 reports by companies. For more detailed information, please visit ECHA C&L website.
There are 5 notifications provided by 5 of 211 reports by companies with hazard statement code(s).
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.
Chemical: DL-Methionine
Green circle - The chemical has been verified to be of low concern based on experimental and modeled data.
Chemical: L-Methionine
Green half-circle - The chemical is expected to be of low concern based on experimental and modeled data. Additional data would strengthen EPA's confidence in the chemical's safer status.
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)
SMALL SPILLS AND LEAKAGE: If you spill this chemical, you should dampen the solid spill material with water, then transfer the dampened material to a suitable container. Use absorbent paper dampened with water to pick up any remaining material. Seal your contaminated clothing and the absorbent paper in a vapor-tight plastic bag for eventual disposal. Wash all contaminated surfaces with a soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.
STORAGE PRECAUTIONS: You should keep this material in a tightly-closed container under an inert atmosphere, and store it at refrigerated temperatures. (NTP, 1992)
Sulfides, Organic
Salts, Acidic
IMAP assessments - L-Methionine: Environment tier I assessment
Evaluation - Chemicals that are unlikely to require further regulation to manage risks to human health
M Chen, V Vijay, Q Shi, Z Liu, H Fang, W Tong. FDA-Approved Drug Labeling for the Study of Drug-Induced Liver Injury, Drug Discovery Today, 16(15-16):697-703, 2011. PMID:21624500 DOI:10.1016/j.drudis.2011.05.007
M Chen, A Suzuki, S Thakkar, K Yu, C Hu, W Tong. DILIrank: the largest reference drug list ranked by the risk for developing drug-induced liver injury in humans. Drug Discov Today 2016, 21(4): 648-653. PMID:26948801 DOI:10.1016/j.drudis.2016.02.015
PubMed: 14264314, 8745393
MetaGene: Metabolic & Genetic Information Center (MIC: http://www.metagene.de)
Silke Matysik, Caroline Ivanne Le Roy, Gerhard Liebisch, Sandrine Paule Claus. Metabolomics of fecal samples: A practical consideration. Trends in Food Science & Technology. Vol. 57, Part B, Nov. 2016, p.244-255: http://www.sciencedirect.com/science/article/pii/S0924224416301984
The Merck Manual, 17th ed. Mark H. Beers, MD, Robert Berkow, MD, eds. Whitehouse Station, NJ: Merck Research Labs, 1999.
PubMed: 26078636, 20549362, 24182348, 6616883, 16972175
MetaGene: Metabolic & Genetic Information Center (MIC: http://www.metagene.de)
PubMed: 8456826
MetaGene: Metabolic & Genetic Information Center (MIC: http://www.metagene.de)
Metabolomics reveals determinants of weight loss during lifestyle intervention in obese children
PubMed: 6589104, 16277678, 15338487, 10361015, 15249323
Tie-juan ShaoZhi-xing HeZhi-jun XieHai-chang LiMei-jiao WangCheng-ping Wen. Characterization of ankylosing spondylitis and rheumatoid arthritis using 1H NMR-based metabolomics of human fecal extracts. Metabolomics. April 2016, 12:70: https://link.springer.com/article/10.1007/s11306-016-1000-2
Patents are available for this chemical structure:
https://patentscope.wipo.int/search/en/result.jsf?inchikey=FFEARJCKVFRZRR-BYPYZUCNSA-N
- Australian Industrial Chemicals Introduction Scheme (AICIS)
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- 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/L-Methionine homopolymerhttps://commonchemistry.cas.org/detail?cas_rn=26062-47-5
- ChemIDplusMethionine [USAN:USP:INN:BAN]https://pubchem.ncbi.nlm.nih.gov/substance/?source=chemidplus&sourceid=0000063683Carbon-11 methioninehttps://pubchem.ncbi.nlm.nih.gov/substance/?source=chemidplus&sourceid=0058576491ChemIDplus Chemical Information Classificationhttps://pubchem.ncbi.nlm.nih.gov/source/ChemIDplus
- DrugBankLICENSECreative Common's Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/legalcode)https://www.drugbank.ca/legal/terms_of_useMethioninehttps://www.drugbank.ca/drugs/DB00134
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- EPA Chemicals under the TSCAMethioninehttps://www.epa.gov/chemicals-under-tscaEPA TSCA Classificationhttps://www.epa.gov/tsca-inventory
- EPA DSSToxL-Methioninehttps://comptox.epa.gov/dashboard/DTXSID5040548CompTox Chemicals Dashboard Chemical Listshttps://comptox.epa.gov/dashboard/chemical-lists/
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- ChEBI
- E. coli Metabolome Database (ECMDB)
- LOTUS - the natural products occurrence databaseLICENSEThe code for LOTUS is released under the GNU General Public License v3.0.https://lotus.nprod.net/Methioninehttps://www.wikidata.org/wiki/Q22124685LOTUS Treehttps://lotus.naturalproducts.net/
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- DailyMed
- Drug Induced Liver Injury Rank (DILIrank) DatasetLICENSEUnless 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
- IUPAC Digitized pKa Dataset
- ECI Group, LCSB, University of LuxembourgL-methionine
- Natural Product Activity and Species Source (NPASS)
- EPA Safer ChoiceDL-Methioninehttps://www.epa.gov/saferchoice/safer-ingredientsEPA Safer Chemical Ingredients Classificationhttps://www.epa.gov/saferchoice
- EU Food Improvement Agents
- EU Clinical Trials Register
- 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
- SpectraBaseD-METHIONINEhttps://spectrabase.com/spectrum/9EAxpcGkMUQD-Methioninehttps://spectrabase.com/spectrum/KdfAgelHgkjD-methioninehttps://spectrabase.com/spectrum/1awDxQuzA1LD-Methioninehttps://spectrabase.com/spectrum/AODBZsFDZVED-Methioninehttps://spectrabase.com/spectrum/CxpLSmCfzYyL-Methioninehttps://spectrabase.com/spectrum/2KIBnW16jPTD-METHIONINEhttps://spectrabase.com/spectrum/FlwANR805dTD-METHIONINEhttps://spectrabase.com/spectrum/D0Ntq2dmVe9L-Methioninehttps://spectrabase.com/spectrum/K65SdqSNyyXL-Methioninehttps://spectrabase.com/spectrum/HPoQZUMJfDb
- 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-lawL-Methioninehttp://www.nist.gov/srd/nist1a.cfm
- 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.htmlCompounds with biological roleshttp://www.genome.jp/kegg-bin/get_htext?br08001.kegAnatomical Therapeutic Chemical (ATC) classificationhttp://www.genome.jp/kegg-bin/get_htext?br08303.kegDrugs listed in the Japanese Pharmacopoeiahttp://www.genome.jp/kegg-bin/get_htext?br08311.kegRisk category of Japanese OTC drugshttp://www.genome.jp/kegg-bin/get_htext?br08312.keg
- Kruve Lab, Ionization & Mass Spectrometry, Stockholm Universitymethionine
- MarkerDBLICENSEThis work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.https://markerdb.ca/L-Methioninehttps://markerdb.ca/chemicals/372
- Metabolomics Workbench
- National Drug Code (NDC) DirectoryLICENSEUnless 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
- Nature Chemical Biology
- Nature Chemistry
- NIPH Clinical Trials Search of Japan
- NLM RxNorm TerminologyLICENSEThe RxNorm Terminology is created by the National Library of Medicine (NLM) and is in the public domain and may be republished, reprinted and otherwise used freely by anyone without the need to obtain permission from NLM. Credit to the U.S. National Library of Medicine as the source is appreciated but not required. The full RxNorm dataset requires a free license.https://www.nlm.nih.gov/research/umls/rxnorm/docs/termsofservice.htmlmethioninehttps://rxnav.nlm.nih.gov/id/rxnorm/6837
- NMRShiftDB
- PharmGKBLICENSEPharmGKB data are subject to the Creative Commons Attribution-ShareALike 4.0 license (https://creativecommons.org/licenses/by-sa/4.0/).https://www.pharmgkb.org/page/policies
- Protein Data Bank in Europe (PDBe)
- RCSB Protein Data Bank (RCSB PDB)LICENSEData files contained in the PDB archive (ftp://ftp.wwpdb.org) are free of all copyright restrictions and made fully and freely available for both non-commercial and commercial use. Users of the data should attribute the original authors of that structural data.https://www.rcsb.org/pages/policies
- Springer Nature
- The Cambridge Structural Database
- 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/
- WHO Anatomical Therapeutic Chemical (ATC) ClassificationLICENSEUse of all or parts of the material requires reference to the WHO Collaborating Centre for Drug Statistics Methodology. Copying and distribution for commercial purposes is not allowed. Changing or manipulating the material is not allowed.https://www.whocc.no/copyright_disclaimer/
- WikidataL-methioninehttps://www.wikidata.org/wiki/Q22124685
- Wikipediamethioninehttps://en.wikipedia.org/wiki/Methionine
- Wiley
- 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
- PubChem
- 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 403031908https://pubchem.ncbi.nlm.nih.gov/substance/403031908
- NCBI