C8H15NO4
189.21 g/mol
Pharmaceutical IntermediateWarning
4-tert-Butyl hydrogen L-aspartate
CAS3057-74-7EC221-292-8
Category
Pharmaceutical Intermediate
Compound Class
Ester
Primary Use
Pharmaceutical Intermediate
4-tert-Butyl hydrogen L-aspartate is a chemical compound used as a pharmaceutical intermediate in the manufacturing of active pharmaceutical ingredients. It contains an amino acid backbone with a tert-butyl ester protecting group.
Pharmaceutical intermediateResearch compound 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 4-tert-Butyl hydrogen L-aspartate?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
Related Compounds
ReferenceSame Category
N6-Benzoyl-2'-deoxyadenosine
CAS305808-19-9
pharmaceutical intermediate
ReferenceSame Category
Perfluorodecalin
CAS306-94-5
pharmaceutical intermediate
ReferenceSame Category
5-Nitropyridine-2-carboxylic acid
CAS30651-24-2
pharmaceutical intermediate
ReferenceSame Category
3-Bromopyridine-2-carboxylic acid
CAS30683-23-9
pharmaceutical intermediate
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 4-tert-Butyl hydrogen L-aspartate (CAS 3057-74-7) 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
(2S)-2-amino-4-[(2-methylpropan-2-yl)oxy]-4-oxobutanoic acid
InChIKey
MXWMFBYWXMXRPD-YFKPBYRVSA-N
SMILES
CC(C)(C)OC(=O)C[C@@H](C(=O)O)N
Synonyms (18)
- 4-tert-Butyl L-Aspartate
- Asp(But)
- Asp(OBut)
- Asp(OtBu)OH
- H-Asp(OtBu)-OH
- H-L-Asp(OtBu)-OH
Sourcing 4-tert-Butyl hydrogen L-aspartate?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.