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.
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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