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CAS 21593-77-1

CAS 21593-77-1 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

Chemical identity and properties

PubChem 2D chemical structure for CAS 21593-77-1
CAS 21593-77-1PubChem CID 9793905

(+)-S-Allylcysteine

S-allylcysteine is an S-hydrocarbyl-L-cysteine that is L-cysteine in which the hydrogen attached to the sulphur is replaced by a prop-2-enyl group. It commonly occurs in garlic and has been found to exhibit antineoplastic activity. It has a role as a metabolite and an antineoplastic agent. It is a tautomer of a S-allylcysteine zwitterion. ChEBI

IUPAC name
(2R)-2-amino-3-prop-2-enylsulfanylpropanoic acid
Molecular formula
C6H11NO2S
Molecular weight
161.22 g/mol
Exact mass
161.05104977 Da
XLogP3
-2.1
Topological polar surface area
88.6 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
4
Covalent units
1
Defined stereocentres
1

Also known as

S-allyl-L-cysteineS-AllylcysteineS-Allyl cysteineL-Cysteine, S-2-propenyl-CHEBI:7407781R3X99M15FEMA NO. 4322NSC-96449
16 more reported names
(2R)-2-AMINO-3-(PROP-2-EN-1-YLSULFANYL) PROPANOIC ACIDRefChem:48874(2R)-2-azaniumyl-3-prop-2-enylsulfanylpropanoate2-amino-3-(prop-2-en-1-ylsulfanyl)propanoic acid(R)-3-(Allylthio)-2-aminopropanoic acidL-DEOXYALLIINDEOXYALLIINallyl-cysteineS-prop-2-en-1-yl-L-cysteineS-2-propenyl-L-cysteineL-Cysteine, S-2-propen-1-yl3-(ALLYLTHIO)-L-ALANINES-(2-PROPENYL)-L-CYSTEINEH-Cys(Allyl)-OHS-allyl-laevo-cystein(s)-allyl-l-cysteine
External database identifiers

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 21593-77-1

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How CAS 21593-77-1 is used on this site

CAS 21593-77-1 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 21593-77-1 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.