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Home/Compounds/Pharmaceutical Intermediate/L-Isoleucine benzyl ester 4-toluenesulphonate
C20H27NO5S
393.5 g/mol
Pharmaceutical Intermediate

H-Ile-Obzl Tos

CAS16652-75-8EC240-701-0
Category
Pharmaceutical Intermediate
Compound Class
Ester
Primary Use
Pharmaceutical Intermediate

This compound is a protected amino acid derivative, specifically the benzyl ester of L-isoleucine, presented as a salt with p-toluenesulfonic acid. It is commonly used as a pharmaceutical intermediate in the synthesis of peptides and other complex molecules.

pharmaceutical intermediateprotected amino acid for peptide synthesis

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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Related Compounds

SimilarStructure SimilarSimilarity 0.74

L-Valine benzyl ester 4-toluenesulfonate

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SimilarStructure SimilarSimilarity 0.74

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Customs Tariff Classification

The international HS code for H-Ile-Obzl Tos (CAS 16652-75-8) is 2922.49.

HS code (international, 6-digit)

2922.49

EU CN code (8-digit)

2922 49 85

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

benzyl (2S,3S)-2-amino-3-methylpentanoate;4-methylbenzenesulfonic acid

InChIKey

XAWVXTVKSVYPNE-JGAZGGJJSA-N

SMILES

CC[C@H](C)[C@@H](C(=O)OCC1=CC=CC=C1)N.CC1=CC=C(C=C1)S(=O)(=O)O

Synonyms (19)
  • H-Ile-OBzl . p-tosylate
  • H-Ile-OBzl.Tos-OH
  • H-Ile-Obzl Tos
  • H-L-Ile-OBzl*Tos
  • L-Ile-OBzl.TosOH

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