C14H19NO4
265.3 g/mol
Pharmaceutical IntermediateWarning
N-(tert-Butoxycarbonyl)-L-phenylalanine
CAS13734-34-4EC237-305-5
Category
Pharmaceutical Intermediate
Compound Class
Peptide
Primary Use
Pharmaceutical Intermediate
N-(tert-Butoxycarbonyl)-L-phenylalanine is a Boc-protected amino acid intermediate used in pharmaceutical manufacturing and research. It serves as a building block in peptide synthesis and other organic chemistry applications.
Boc-protected amino acid intermediateBuilding block in peptide synthesisPharmaceutical intermediate
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 0.79
Boc-L-Tyrosine
CAS3978-80-1
pharmaceutical intermediate
SimilarStructure SimilarSimilarity 0.79
Boc-L-phenylalanine methyl ester
CAS51987-73-6
research compound
SimilarStructure SimilarSimilarity 0.79
Boc-O-benzyl-L-tyrosine
CAS2130-96-3
research compound
ApplicationSame Use
3-Amino-N-[(tert-butoxy)carbonyl]alanine
CAS159002-17-2
pharmaceutical intermediate
ApplicationSame Use
(2R)-2-(tert-butoxycarbonylamino)-3-(2-methyl-4-pyridyl)propanoic acid
CAS2271566-68-6
pharmaceutical intermediate
ApplicationSame Use
3-tert-Butoxycarbonylamino-2-hydroxy-4-phenylbutyric acid
CAS105181-72-4
pharmaceutical intermediate
ApplicationSame Use
N-Boc-(2S,3S)-3-amino-2-hydroxy-4-phenyl-butyric acid
CAS116661-86-0
pharmaceutical intermediate
ReferenceSame Category
Tert-Butyl 5-(aminomethyl)-3,3-difluoropiperidine-1-carboxylate
CAS1373502-92-1
pharmaceutical intermediate
Related Reading
Safety Reference
Warning
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for N-(tert-Butoxycarbonyl)-L-phenylalanine (CAS 13734-34-4) is 2922.50.
HS code (international, 6-digit)
2922.50
EU CN code (8-digit)
2922 50 00
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)-2-[(2-methylpropan-2-yl)oxycarbonylamino]-3-phenylpropanoic acid
InChIKey
ZYJPUMXJBDHSIF-NSHDSACASA-N
SMILES
CC(C)(C)OC(=O)N[C@@H](CC1=CC=CC=C1)C(=O)O
Synonyms (47)
- (S)-N-Boc-phenylalanine
- BOC-L-PHE-OH
- Boc-L-phenylalanine
- Boc-Phe-OH
- Boc-Phe-OH, >=99.0% (T)
- Boc-phenylalanine
- BocPhe
- Difelikefalin Impurity 36
- N-Boc-L-Phe
- N-Boc-L-Phenylalanine
- N-Boc-Phenylalanine
- N-alpha-t-Boc-L-phenylalanine
- N-t-Boc-L-phenylalanine
- Nalpha -Boc-phenylalanine
- Phe-NHBOC
- boc-l-phenylalanin
- t-butoxycarbonylphenylalanine
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