H-Tyr(tBu)-OtBu·HCl is a protected tyrosine derivative in which the phenolic side chain is tert-butyl-protected and the carboxyl group is present as an tert-butyl ester, with an N-terminal free amine (H-) and a hydrochloride counterion. The molecule contains a phenyl ring bearing a tert-butyl-protected phenoxy substituent, a primary amino group, and a tert-butyl ester functionality that masks the carboxylic acid to reduce undesired acyl/side reactions during handling and coupling. It is used as a stepwise peptide synthesis building block or as a protected amino acid intermediate for preparing tyrosine-containing peptides and conjugates, where the protecting groups support controlled deprotection and chemoselective transformations.
CAT No: CP02142
CAS No:17083-23-7
Synonyms/Alias:O-tert.Butyl-L-tyrosine tert.butyl ester hydrochloride;17083-23-7;(S)-tert-Butyl2-amino-3-(4-(tert-butoxy)phenyl)propanoatehydrochloride;H-L-Tyr(tBu)-OtBu*HCl;O-t-Butyl-L-tyrosinet-butylesterhydrochloride;H-Tyr(tBu)-OtBuHCl;O-tert-butyl-L-tyrosinetert-butylesterhydrochloride;H-Tyr(tBu)-OtBu.HCl;H-Hyp(tBu)-OtBuCl;Tyr(tBu)-OtBu,HCl;Tyr(tBu)-OtBu.HCl;PubChem19063;B2519_SIGMA;SCHEMBL7325406;CTK7F3297;MolPort-003-940-435;TERT-BUTYL(2S)-2-AMINO-3-[4-(TERT-BUTOXY)PHENYL]PROPANOATEHYDROCHLORIDE;ANW-43228;CH-537;AKOS015918348;AM82346;AK-60216;KB-59338;TC-131973;ST24036421;K-5266
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