C8H15NO4
189.21 g/mol
Pharmaceutical IntermediateDanger
N-(methoxycarbonyl)-l-tert-leucine
CAS162537-11-3EC431-620-3
Category
Pharmaceutical Intermediate
Compound Class
Other
Primary Use
Pharmaceutical Intermediate
N-(Methoxycarbonyl)-L-tert-leucine is a chiral building block used primarily in peptide synthesis. It features a tert-butyl side chain and a methoxycarbonyl protecting group on the amino function, making it suitable for solid-phase or solution-phase peptide assembly.
peptide synthesis intermediatebuilding block for modified peptides
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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Safety Reference
Danger
H318Causes serious eye damage
H412Harmful to aquatic life with long lasting effects
Customs Tariff Classification
The international HS code for N-(methoxycarbonyl)-l-tert-leucine (CAS 162537-11-3) is 2924.19.
HS code (international, 6-digit)
2924.19
EU CN code (8-digit)
2924 19 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-(methoxycarbonylamino)-3,3-dimethylbutanoic acid
InChIKey
NWPRXAIYBULIEI-RXMQYKEDSA-N
SMILES
CC(C)(C)[C@@H](C(=O)O)NC(=O)OC
Synonyms (14)
- ATAZANAVIR SULFATE IMPURITY K (EP IMPURITY)
- ATAZANAVIR SULFATE IMPURITY K
- Atazanavir impurity K CRS
- Moc-tert-Leu-OH
- methoxycarbonyl-t-leucine
- moc-l-tert. leucin
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