Cysteine
- L-cysteine
- 52-90-4
- cysteine
- Cystein
- (R)-2-Amino-3-mercaptopropanoic acid
- Create:2004-09-16
- Modify:2025-01-04
- Cysteine
- Cysteine Hydrochloride
- Half Cystine
- Half-Cystine
- L Cysteine
- L-Cysteine
- Zinc Cysteinate
- L-cysteine
- 52-90-4
- cysteine
- Cystein
- (R)-2-Amino-3-mercaptopropanoic acid
- (R)-Cysteine
- Thioserine
- Half-cystine
- L-(+)-Cysteine
- L-Cystein
- Cysteinum
- Cysteine, L-
- (2R)-2-amino-3-sulfanylpropanoic acid
- FREE CYSTEINE
- beta-Mercaptoalanine
- Half cystine
- H-Cys-OH
- cisteina
- 2-Amino-3-mercaptopropionic acid
- Cisteinum
- L-Cys
- L-Alanine, 3-mercapto-
- FEMA No. 3263
- (R)-2-Amino-3-mercaptopropionic acid
- Cisteinum [Latin]
- Cysteine [INN]
- L-2-Amino-3-mercaptopropionic acid
- Cisteina [Spanish]
- CCRIS 912
- L Cysteine
- NSC-8746
- L-Zystein
- alpha-Amino-beta-thiolpropionic acid
- L-2-Amino-3-mercaptopropanoic acid
- Cysteinum [INN-Latin]
- Cisteina [INN-Spanish]
- beta-Mercaptoalanine, L-
- CHEBI:17561
- HSDB 2109
- (2R)-2-amino-3-mercaptopropanoic acid
- AI3-26559
- alpha-Amino-beta-thiolpropionic acid, L-
- alpha-Amino-beta-mercaptopropanoic acid, L-
- alpha-Amino-beta-mercaptopropionic acid, L-
- E 920
- EINECS 200-158-2
- Propanoic acid, 2-amino-3-mercapto-, (R)-
- 2-Amino-3-mercaptopropanoic acid, (R)-
- Cys
- E920
- UNII-K848JZ4886
- (R)-(+)-Cysteine
- CHEMBL863
- K848JZ4886
- DTXSID8022876
- EC 200-158-2
- Cisteinum (Latin)
- MFCD00064306
- (+)-2-Amino-3-mercaptopropionic acid
- 4371-52-2
- Cysteinum (INN-Latin)
- CYSTEINE (II)
- CYSTEINE [II]
- Cisteina (INN-Spanish)
- E-920
- CYSTEINE (MART.)
- CYSTEINE [MART.]
- Zystein
- Hcys
- b-Mercaptoalanine
- (2R)-2-amino-3-mercaptopropanoate
- (2R)-2-amino-3-sulfanylpropanoate
- 3-mercapto-L-Alanine
- ACETYLCYSTEINE IMPURITY B (EP IMPURITY)
- ACETYLCYSTEINE IMPURITY B [EP IMPURITY]
- Ecolan
- 345909-32-2 (.xH2O)
- l-cycteine
- racemic cysteine
- L-Cysteine; Acetylcysteine Imp. B (EP); Acetylcysteine Impurity B
- (2R)-2-amino-3-sulfanylpropanoic acid hydrochloride
- 2-amino-3-mercaptopropanoate
- 1ssq
- Ecolan (TN)
- L-Cysteine, 97%
- .beta.-Mercaptoalanine
- H-Cys-OH HCl H
- (2R)-2-amino-3-sulfanyl-propanoic acid
- 1xt8
- CYSTEINE [HSDB]
- L-Cysteine (JP18)
- CYSTEINE [MI]
- CYSTEINE [VANDF]
- CYSTEINUM [HPUS]
- L-CYSTEINE [JAN]
- bmse000034
- bmse000975
- CYSTEINE [WHO-DD]
- Epitope ID:140791
- L-CYSTEINE [FHFI]
- L-CYSTEINE [VANDF]
- 2-Amino-3-mercaptopropionate
- DTXCID302876
- GTPL4782
- L-Cysteine, >=97%, FG
- L-2-Amino-3-mercaptopropanoate
- 2-amino-3-mercapto-, (R)-
- L-Cysteine from non-animal source
- AIDS002953
- (R)-2-Amino-3-mercaptopropanoate
- HY-Y0337
- STR02584
- (R)-2-amino-3-mercapto-Propanoate
- BDBM50109609
- s5635
- (R)-2-Amino-3-mercaptopropanoicacid
- propanoic acid, 2-amino-3-mercapto-
- AKOS015854128
- CCG-266077
- CS-W009027
- DB00151
- (R)-2-amino-3-mercapto-Propanoic acid
- NCGC00248803-01
- .alpha.-Amino-.beta.-thiolpropionic acid
- L-Cysteine, BioUltra, >=98.5% (RT)
- DB-297705
- R-2-AMINO-3-MERCAPTOPROPIONIC ACID
- L-Cysteine, SAJ special grade, >=98.5%
- L-Cysteine, Vetec(TM) reagent grade, 97%
- NS00008697
- EN300-52823
- C-9615
- C00097
- D00026
- M03086
- Propanoic acid, 2-amino-3-mercapto-, (R)-
- L-Cysteine, Cell Culture Reagent (H-L-Cys-OH)
- Q186474
- Q-201286
- Q-201328
- BBAE7AE6-FC21-4D37-808D-C7F7A2BA637F
- BRD-K00795468-001-02-1
- Q27115093
- F0001-2369
- F8880-8973
- Flavor and Extract Manufacturers' Association No. 3263
- L-Cysteine, certified reference material, TraceCERT(R)
- Z760035162
- L-Cysteine, produced by Wacker Chemie AG, Burghausen, Germany, >=98.0%
- L-Cysteine, from non-animal source, BioReagent, suitable for cell culture, >=98%
151.34 Ų [M+Na]+ [CCS Type: DT; Method: stepped-field]
144.47 Ų [M-H]- [CCS Type: DT; Method: stepped-field]
149.57 Ų [M+H]+ [CCS Type: DT; Method: stepped-field]
144 Ų [M-H]-
148.6 Ų [M+H]+
150.4 Ų [M+Na]+
218.1 100
146.1 59.84
266.15 31.93
147.15 30.14
100.1 28.86
218.0 100
146.0 91.99
100.0 52.05
147.0 51.25
148.0 20.72
76.02084 100
58.99469 97
86.98946 30.67
105.00021 21.56
122.02696 16.60
76.0208 999
86.9894 167
105 137
122.0264 75
125.0257 1
76.0209 999
86.9895 128
104.9997 19
77.0237 13
62.9893 7
218.1 999
146.1 598
266.15 319
147.15 301
100.1 288
- Cysteine Hydrochloride (has salt form)
- Alpha lipoic acid; antimony trisulfide; chromic sulfate pentadecahydrate; cysteine; fucus vesiculosus; gamboge; graphite; niacinamide; semecarpus anacardium juice (component of)
- Anemone pratensis; ascorbic acid; cysteine; fumaric acid; germanium sesquioxide; iodine; magnesium; manganese gluconate; oxogluric acid; sodium diethyl oxalacetate; sus scrofa thyroid; vanadium (component of)
- alpha-KETOGLUTARIC ACID; ARSENIC TRIOXIDE; BOS TAURUS BILE; CYSTEINE; FUMARIC ACID; GERMANIUM SESQUIOXIDE; GINKGO; MANGANESE; MANGANESE GLUCONATE; PHOSPHORUS; PORK LIVER; SODIUM OXALATE; SULFUR (component of)
- alpha-KETOGLUTARIC ACID; COPPER; CYSTEINE; FUMARIC ACID; GERMANIUM SESQUIOXIDE; GINKGO; MANGANESE GLUCONATE; SODIUM DIETHYL OXALACETATE; SUS SCROFA PANCREAS; SUS SCROFA SPLEEN; SUS SCROFA STOMACH; ZINC (component of)
- alpha-KETOGLUTARIC ACID; ARSENIC TRIOXIDE; COBALT; CYSTEINE; FUMARIC ACID; GERMANIUM SESQUIOXIDE; GOLD; MANGANESE; MANGANESE GLUCONATE; PHOSPHORUS; PORK HEART; PORK INTESTINE; SODIUM DIETHYL OXALACETATE (component of)
- Bos taurus bile; copper; cysteine; fumaric acid; germanium sesquioxide; ginkgo; gold; manganese gluconate; mercurius solubilis; oxogluric acid; phosphoric acid; pork kidney; silver; sodium diethyl oxalacetate; strychnos nux-vomica seed (component of)
- Arsenic trioxide; copper; cysteine; fumaric acid; germanium sesquioxide; manganese; manganese gluconate; oxogluric acid; oyster shell calcium carbonate, crude; phosphorus; pork intestine; sodium diethyl oxalacetate; sus scrofa lung (component of)
- Activated charcoal; alcohol, X-ray exposed (1000 rad); aluminum oxide; calcium sulfide; causticum; cysteine; gold; nitric acid; phytolacca americana root; platinum; pork liver; stillingia sylvatica root; strychnos nux-vomica seed; tellurium; tin (component of)
- Anhydrous citric acid; ceanothus americanus leaf; chelidonium majus; chionanthus virginicus bark; cysteine; magnesium chloride; milk thistle; phosphorus; pork liver; quassia amara wood; sodium sulfate; strychnos nux-vomica seed; taraxacum officinale; veronicastrum virginicum root (component of)
- Acetaldehyde; ammonium carbonate; benzene; berberis vulgaris root bark; camphor (natural); carbon tetrachloride; chloroform; cysteine; ether; formaldehyde solution; kerosene; lachesis muta venom; lead; naphthalene; oyster shell calcium carbonate, crude; paraffin; phenol; strychnos nux-vomica seed; sulfuric acid; taraxacum officinale; wood creosote (component of)
- Acetaldehyde; acetylcholine chloride; caffeic acid; candida albicans; chlorogenic acid; cinnamic acid; coumarin; cysteine; dopamine hydrochloride; epinephrine; gallic acid monohydrate; histamine dihydrochloride; indole; malvin; mannose, D-; menadione; norepinephrine bitartrate; phenyl isothiocyanate; phlorizin; pork liver; quercetin; serotonin hydrochloride; sus scrofa pancreas; tyramine (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)
- alpha-LIPOIC ACID; ALUMINUM OXIDE; ARCTIUM LAPPA ROOT; ARSENIC; BERBERIS VULGARIS ROOT BARK; CADMIUM; CETRARIA ISLANDICA SUBSP. ISLANDICA; COPPER; CYSTEINE; GARLIC; GINGER; GLYCYRRHIZA GLABRA; LEAD; LYCOPODIUM CLAVATUM SPORE; MERCURIUS SOLUBILIS; MILK THISTLE; ONION; PLANTAGO MAJOR; PORK LIVER; PYRIDOXINE HYDROCHLORIDE; SELENIUM; STILLINGIA SYLVATICA ROOT; STRYCHNOS NUX-VOMICA SEED; THYROID, BOVINE; TRIFOLIUM PRATENSE FLOWER (component of)
- Aconitic acid, (Z)-; adenosine triphosphate disodium; anemone pulsatilla; anhydrous citric acid; ascorbic acid; barium oxalosuccinate; beta vulgaris; calcium sulfide; cerous oxalate nonahydrate; cysteine; epinephrine; fumaric acid; magnesium orotate dihydrate; malic acid; manganese phosphate, dibasic; nadide; niacinamide; oxogluric acid; pantothenic acid; proteus morganii; pyridoxine hydrochloride; riboflavin; sodium diethyl oxalacetate; sodium pyruvate; succinic acid; sulfur; thiamine hydrochloride; thioctic acid (component of)
- Acetic acid; adenosine triphosphate disodium; alpha lipoic acid; anhydrous citric acid; ascorbic acid; barium oxalosuccinate; beta vulgaris whole; calcium sulfide; cerous oxalate nonahydrate; cysteine; epinephrine; fumaric acid; magnesium orotate dihydrate; malic acid; manganese phosphate, dibasic; nadide; niacinamide; oxogluric acid; pantothenic acid; proteus morganii; pulsatilla pratensis whole; pyridoxine hydrochloride; riboflavin; sodium diethyl oxalacetate; sodium pyruvate; succinic acid; sulfur; thiamine hydrochloride (component of)
- Aconitic acid; adenosine triphosphate disodium; alpha lipoic acid; anhydrous citric acid; ascorbic acid; barium oxalosuccinate; calcium sulfide; cerous oxalate nonahydrate; cysteine; epinephrine; fumaric acid; magnesium orotate dihydrate; malic acid; manganese phosphate, dibasic; milk thistle; nadide; niacinamide; oxogluric acid; pantothenic acid; proteus morganii; pulsatilla pratensis whole; pyridoxine hydrochloride; riboflavin; sodium diethyl oxalacetate; sodium pyruvate; succinic acid; sulfur; thiamine hydrochloride (component of)
- Activated charcoal; arginine; bos taurus hypothalamus; chelidonium majus; cysteine; fucus vesiculosus; graphite; leucine; lycopodium clavatum spore; magnesium phosphate, dibasic trihydrate; ornithogalum umbellatum; oyster shell calcium carbonate, crude; phytolacca americana root; potassium phosphate, dibasic; proline; quercus robur nut; quercus robur twig bark; serine; sinapis arvensis flowering/fruiting top; sodium chloride; sodium phosphate, dibasic, heptahydrate; strychnos nux-vomica seed; sucrose; sus scrofa pituitary gland; sus scrofa placenta; threonine; ubidecarenone; valine (component of)
- Activated charcoal; bos taurus pituitary gland, posterior; capsicum; centella asiatica whole; chaste tree fruit; chelidonium majus whole; cysteine; dibasic potassium phosphate; fucus vesiculosus; gamboge; graphite; green tea leaf; gymnema sylvestre leaf; lycopodium clavatum spore; milk thistle; oyster shell calcium carbonate, crude; phytolacca americana root; pork liver; potassium carbonate; rosa canina flower; salix alba bark; sodium chloride; sodium phosphate, dibasic, heptahydrate; sodium sulfate; strychnos nux-vomica seed; sus scrofa adrenal gland; sus scrofa pancreas; sus scrofa placenta; thuja occidentalis leafy twig; thyroid, bovine; water (component of)
- Anemone pulsatilla; chelidonium majus; copper; cysteine; eugenol; ferrous iodide; formaldehyde; fucus vesiculosus; fumaric acid; germanium sesquioxide; ginkgo; gold; human coxsackievirus A2; human coxsackievirus A7; human coxsackievirus B1; human coxsackievirus B3; human coxsackievirus B4; iodine; lidocaine; lycopus virginicus; manganese gluconate; mercurius solubilis; molybdenum; mumps virus; nickel; oxogluric acid; oyster shell calcium carbonate, crude; palladium; pinus sylvestris leafy twig; potassium iodide; rubella virus; silver; sodium diethyl oxalacetate; spongia officinalis skeleton, roasted; sus scrofa pituitary gland; sus scrofa thyroid; tin; titanium; zinc (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)
- Adrenal Cortex
- Epidermis
- Fibroblasts
- Intestine
- Kidney
- Liver
- Neuron
- Placenta
- Platelet
- Prostate
- Skeletal Muscle
- Spleen
- Testis
- Thyroid Gland
- Cytoplasm
- Extracellular
- Mitochondria
- 2-Hydroxyglutric Aciduria (D And L Form)
- 3-Phosphoglycerate dehydrogenase deficiency
- 4-Hydroxybutyric Aciduria/Succinic Semialdehyde Dehydrogenase Deficiency
- 5-oxoprolinase deficiency
- 5-Oxoprolinuria
- Amiloride Action Pathway
- Bendroflumethiazide Action Pathway
- Beta-mercaptolactate-cysteine disulfiduria
- Blue diaper syndrome
- Bumetanide Action Pathway
- Total 65 pathways, visit the HMDB page for details
Reported uses (ppm):
Table: Reported uses (ppm): (Flavor and Extract Manufacturers' Association, 1994)
Use (kg) in Switzerland (2009): >10000
Use (kg; approx.) in Germany (2009): >100000
Use (kg; exact) in Germany (2009): 132069
Use (kg) in France (2004): 96759
Consumption (g per capita) in Switzerland (2009): 1.3
Consumption (g per capita; approx.) in Germany (2009): 1.2
Consumption (g per capita; exact) in Germany (2009): 1.6
Consumption (g per capita) in France (2004): 1.6
Excretion rate: 0.3
Calculated removal (%): 92.1
Information on 4 consumer products that contain Cysteine in the following categories is provided:
• Personal Care
H302 (57.6%): Harmful if swallowed [Warning Acute toxicity, oral]
H315 (12.4%): Causes skin irritation [Warning Skin corrosion/irritation]
H319 (12.4%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
H335 (12.4%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501
(The corresponding statement to each P-code can be found at the GHS Classification page.)
Aggregated GHS information provided per 510 reports by companies from 14 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Reported as not meeting GHS hazard criteria per 160 of 510 reports by companies. For more detailed information, please visit ECHA C&L website.
There are 12 notifications provided by 350 of 510 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.
Acute Tox. 4 (57.6%)
Skin Irrit. 2 (12.4%)
Eye Irrit. 2 (12.4%)
STOT SE 3 (12.4%)
Status: Active Update: 10-11-2020 https://echa.europa.eu/registration-dossier/-/registered-dossier/12475
Status: Active Update: 30-01-2019 https://echa.europa.eu/registration-dossier/-/registered-dossier/23057
IMAP assessments - Cysteine and its salts: Human health tier II assessment
IMAP assessments - L-Cysteine: Environment tier I assessment
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
Merck Manual of Diagnosis and Therapy.
David F. Putnam Composition and Concentrative Properties of Human Urine. NASA Contractor Report. July 1971
Geigy Scientific Tables, 8th Rev edition, pp. 130. Edited by C. Lentner, West Cadwell, N.J.: Medical education Div., Ciba-Geigy Corp. Basel, Switzerland c1981-1992.
Geigy Scientific Tables, 8th Rev edition, pp. 165-177. Edited by C. Lentner, West Cadwell, N.J.: Medical education Div., Ciba-Geigy Corp., Basel, Switzerland c1981-1992.
National Health and Nutrition Examination Survey (NHANES Survey) 2013
Geigy Scientific Tables, 8th Rev edition, pp. 80-82. Edited by C. Lentner, West Cadwell, N.J.: Medical education Div., Ciba-Geigy Corp., Basel, Switzerland c1981-1992.
PubMed: 10682307, 27289259, 23452914, 15558695
Clinical and Laboratory Barriers to the Timely Diagnosis of Sulphite Oxidase Deficiency. Proceedings of Singapore Healthcare, 19(2), 94-100.
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
Patents are available for this chemical structure:
https://patentscope.wipo.int/search/en/result.jsf?inchikey=XUJNEKJLAYXESH-REOHCLBHSA-N
- Australian Industrial Chemicals Introduction Scheme (AICIS)
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- Cosmetic Ingredient Review (CIR)
- EPA Chemical and Products Database (CPDat)EPA CPDat Classificationhttps://www.epa.gov/chemical-research/chemical-and-products-database-cpdat
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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
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- IUPAC Digitized pKa Datasetpropanoic acid, 2-amino-3-mercapto-https://github.com/IUPAC/Dissociation-Constants
- ECI Group, LCSB, University of LuxembourgL-cysteine
- Natural Product Activity and Species Source (NPASS)
- EU Food Improvement Agents
- Hazardous Chemical Information System (HCIS), Safe Work Australia
- NITE-CMCL-Cysteine - FY2012 (New/original classication)https://www.chem-info.nite.go.jp/chem/english/ghs/12-mhlw-0020e.html
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- Flavor and Extract Manufacturers Association (FEMA)
- MassBank Europe
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- NMRShiftDB
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- SpectraBasecysteine, 3TMShttps://spectrabase.com/spectrum/4tio1v4AbIL-(+)-cysteinehttps://spectrabase.com/spectrum/9Po2PT620VJL-(+)-CYSTEINEhttps://spectrabase.com/spectrum/HmYcTiHVxPM
- 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.kegTherapeutic category of drugs in Japanhttp://www.genome.jp/kegg-bin/get_htext?br08301.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.kegClassification of Japanese OTC drugshttp://www.genome.jp/kegg-bin/get_htext?br08313.keg
- Kruve Lab, Ionization & Mass Spectrometry, Stockholm Universitycysteine
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- PubChem
- GHS Classification (UNECE)GHS Classification Treehttp://www.unece.org/trans/danger/publi/ghs/ghs_welcome_e.html
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