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Home/Compounds/Pharmaceutical Intermediate/N-Cbz-O-tert-butyl-L-serine
C15H21NO5
295.33 g/mol
Pharmaceutical Intermediate

N-(Benzoxycarbonyl)-O-(tert-butyl)-L-serine

CAS1676-75-1EC216-827-7
Category
Pharmaceutical Intermediate
Compound Class
Peptide
Primary Use
Pharmaceutical Intermediate

This compound is a protected amino acid derivative used in peptide synthesis. It features a benzyloxycarbonyl (Cbz) protecting group on the amino group and a tert-butyl group on the serine side chain, making it suitable for stepwise assembly of peptides in laboratory and manufacturing settings.

Peptide synthesis intermediateProtected amino acid for solid-phase peptide synthesisResearch reagent for peptide chemistry

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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Customs Tariff Classification

The international HS code for N-(Benzoxycarbonyl)-O-(tert-butyl)-L-serine (CAS 1676-75-1) is 2924.29.

HS code (international, 6-digit)

2924.29

EU CN code (8-digit)

2924 29 70

Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.

Identifiers
IUPAC Name

3-[(2-methylpropan-2-yl)oxy]-2-(phenylmethoxycarbonylamino)propanoic acid

InChIKey

TXDGEONUWGOCJG-UHFFFAOYSA-N

SMILES

CC(C)(C)OCC(C(=O)O)NC(=O)OCC1=CC=CC=C1

Synonyms (15)
  • Cbz-Ser(tBu)-OH
  • N-Cbz-O-tert-butyl-DL-serine
  • Z-O-tert-butyl-L-serine

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