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Home/Compounds/Food Additive/Cysteine hydrochloride monohydrate
C3H10ClNO3S
175.64 g/mol
Food AdditiveWarning

L-Cysteine hydrochloride monohydrate

CAS7048-04-6
Category
Food Additive
Compound Class
Amine
Primary Use
flavor enhancer and nutritional supplement

L-Cysteine hydrochloride monohydrate is a salt and hydrate form of the amino acid L-cysteine. It is commonly used as a flavor enhancer and nutritional supplement in food products, and also appears in personal care formulations.

flavor enhancernutritional supplementpersonal care ingredient

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

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Related Compounds

StrongSame Parent

Cysteine hydrochloride

CAS52-89-1

dough conditioner and nutritional supplement

StrongSame Parent

L-Cysteine

CAS52-90-4

Flavor and nutrition additive

ReferenceSame Category

Citrulline malate

CAS70796-17-7

anti-fatigue compound

ReferenceSame Category

L-histidine zwitterion

CAS71-00-1

nutritional supplement and dietary additive

ReferenceSame Category

Disodium glycyrrhizate

CAS71277-79-7

Food and cosmetic additive

ReferenceSame Category

Sodium lactate

CAS72-17-3

Food acidity regulator and preservative

Referencestereoisomer of

D-cysteine zwitterion

CAS921-01-7

research compound

Referencestereoisomer of

DL-Cysteine hydrochloride monohydrate

CAS96998-61-7

research compound

Safety Reference

Harmful
Harmful
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H302Harmful if swallowed
Identifiers
IUPAC Name

(2R)-2-amino-3-sulfanylpropanoic acid;hydrate;hydrochloride

InChIKey

QIJRTFXNRTXDIP-JIZZDEOASA-N

SMILES

C([C@@H](C(=O)O)N)S.O.Cl

Synonyms (43)
  • Cysteine hydrochloride (USP)
  • Cysteine hydrochloride monohydrate, European Pharmacopoeia (EP)
  • L-Cysteine hydrochloride monohydrate, USP grade
  • L-Cysteine hydrochloride monohydrate, from non-animal source, cell culture tested, meets EP, USP testing specifications
  • L-Cysteine hydrochloride, United States Pharmacopeia (USP)
  • Cysteine HCl
  • Cysteine hydrochloride
  • Elcys (TN)
  • H-Cys-OH.HCl.H2O
  • L-CYSTEINE HCl MONOHYDRATE
  • L-CYSTEINE MONOHYDROCHLORIDE
  • L-Cys-OH.HCl.H2O
  • L-Cysteine HCl hydrate