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S-Benzyl-L-cysteine benzyl ester hydrochloride

S-Benzyl-L-cysteine benzyl ester hydrochloride is a protected cysteine derivative in which the thiol side chain is present as an S-benzyl thioether and the carboxyl group is esterified as a benzyl ester, while retaining an amino acid backbone with an amino functionality. The molecule bears an L-stereochemical configuration at the α-carbon as indicated by the name, and the hydrochloride form associates with the basic amino group to form a salt, with the benzyl protecting group on sulfur and the benzyl ester providing chemoselective stability during multi-step synthesis. It is used as a substrate or building block for peptide and thioether-containing amino acid derivative preparation in solution-phase or solid-phase workflows, where controlled deprotection and subsequent coupling can be used to access cysteine-like functionalities or to introduce thioether-stabilized side chains into larger targets.

Designed for biological research and industrial applications, not intended for individual clinical or medical purposes.

CAT No: CP00650

CAS No:4561-11-9

Synonyms/Alias:4561-11-9;S-Benzyl-L-cysteinebenzylesterhydrochloride;H-Cys(Bzl)-OBzl.HCl;CTK7F3305;AKOS015950981;AM81689;AM002818;KB-60405;AB1006964;FT-0688553;3-(Benzylthio)-alaninebenzylesterhydrochloride;S-BENZYL-L-CYSTEINEBENZYLESTERHYDROCHLORIDE;BENZYL(2R)-2-AMINO-3-(BENZYLSULFANYL)PROPANOATEHYDROCHLORIDE

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M.F/Formula
C17H20ClNO2S
M.W/Mr.
337.9
Abbr
H-Cys(Bzl)-OBzl.HCl
InChI
1S/C17H19NO2S.ClH/c18-16(13-21-12-15-9-5-2-6-10-15)17(19)20-11-14-7-3-1-4-8-14;/h1-10,16H,11-13,18H2;1H/t16-;/m0./s1
InChI Key
SKFOKVOZXZYMAU-NTISSMGPSA-N
Canonical SMILES
C1=CC=C(C=C1)COC(=O)C(CSCC2=CC=CC=C2)N.Cl

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