ChemAbout

ChemAbout is a B2B platform where chemical buyers and suppliers discover each other.

Post a purchase requestList your products (for suppliers)
© 2026 ChemAbout
Compound Index|Demand Board|Insights|Exhibitions|Compliance|Help Center|Privacy Policy|Terms of Service|[email protected]
Home/Compounds/Pharmaceutical Intermediate/N-Cbz-L-Isoleucine
C14H19NO4
265.3 g/mol
Pharmaceutical Intermediate

N-[(Phenylmethoxy)carbonyl]-L-isoleucine

CAS3160-59-6
Category
Pharmaceutical Intermediate
Compound Class
Peptide
Primary Use
Pharmaceutical Intermediate

N-[(Phenylmethoxy)carbonyl]-L-isoleucine is a protected amino acid intermediate used in peptide synthesis. It features a benzyloxycarbonyl (Cbz) protecting group attached to the amino terminus of L-isoleucine.

protected amino acid intermediate 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.

Sourcing N-[(Phenylmethoxy)carbonyl]-L-isoleucine?

Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.

Post a Purchase Request→Supplier? List your product for this CAS→

Related Compounds

StrongSame Parent

Cbz-L-Isoleucine (dicyclohexylammonium) salt

CAS26699-00-3

pharmaceutical intermediate

SimilarStructure SimilarSimilarity 0.76

(2S)-3-methyl-2-(phenylmethoxycarbonylamino)butanoic acid

CAS1149-26-4

research compound

SimilarStructure SimilarSimilarity 0.74

N-Cbz-L-Threonine

CAS19728-63-3

research compound

ApplicationSame Use

Cbz-beta-Amino-D-alanine

CAS62234-37-1

pharmaceutical intermediate

ApplicationSame Use

N'-Trityl-L-histidine

CAS35146-32-8

pharmaceutical intermediate

ApplicationSame Use

O-(1,1-Dimethylethyl)-N-[(phenylmethoxy)carbonyl]-L-tyrosine

CAS5545-54-0

pharmaceutical intermediate

ApplicationSame Use

(2S,3S)-3-(Z-amino)-2-hydroxy-4-phenylbutyric acid

CAS62023-59-0

pharmaceutical intermediate

ReferenceSame Category

N-(4-bromophenyl)-3-phenylpropanamide

CAS316146-27-7

pharmaceutical intermediate

Related Reading

Therapeutic Peptides in 2026: This Year's Breakthroughs

2026 has been a concentrated year for peptide therapeutics. Efficacy reached a new high in late-stage trials, the obesity field moved beyond the incretins to amylin, the oral route reached weight management, and peptide-guided radioligand therapy kept advancing — each point tied to a specific 2025–2026 result.

Read more

Customs Tariff Classification

The international HS code for N-[(Phenylmethoxy)carbonyl]-L-isoleucine (CAS 3160-59-6) 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

(2S,3S)-3-methyl-2-(phenylmethoxycarbonylamino)pentanoic acid

InChIKey

JSHXJPFZKBRLFU-JQWIXIFHSA-N

SMILES

CC[C@H](C)[C@@H](C(=O)O)NC(=O)OCC1=CC=CC=C1

Synonyms (14)
  • Cbz-L-Ile-OH
  • Cbz-L-Isoleucine
  • N-Carbobenzoxy-L-isoleucine
  • N-Carbobenzyloxy-L-isoleucine
  • N-Cbz-L-isoleucine
  • N-Z-Ile-OH
  • Z-Ile-OH
  • Z-L-Isoleucine

Sourcing N-[(Phenylmethoxy)carbonyl]-L-isoleucine?

Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.

Post a Purchase Request→Supplier? List your product for this CAS→