H-Asp(OtBu)-OH
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H-Asp(OtBu)-OH is a protected form of L-aspartic acid in which the side-chain carboxyl group is esterified with a tert-butyl group. This structure helps prevent side reactions during peptide synthesis, making it a useful building block in solid-phase peptide synthesis (SPPS). It is especially suitable for the production of GLP-1 and other biologically active peptides.
- CAS No.: 3057-74-7
- Molecular Formula: C₈H₁₅NO₄
- Purity: 99% min
- Appearance White solid
- Molecular Weight 189.21 g/mol
- Density 1.202±0.06 g/cm³
- Boiling Point N/A
- Melting Point N/A
- Flash Point N/A
- Packaging 25kg/fibre drum
- Storage Conditions Keep in dark place, inert atmosphere, room temperature
- Customs code 29225090
- Production capacity 1 ton/month
- Product Name
- L-Aspartic acid 4-tert-butyl ester;
- H-Asp(OtBu)-OH;
- (S)-2-Amino-4-(tert-butoxy)-4-oxobutanoic acid;
- (2S)-2-amino-4-(tert-butoxy)-4-oxobutanoic acid;
- (2S)-2-amino-4-[(2-methylpropan-2-yl)oxy]-4-oxobutanoic acid;
- 4-tert-Butyl hydrogen L-aspartate;
- l-aspartic acid, 4-(1,1-dimethylethyl) ester
- Applications Raw material for GLP-1 peptide synthesis, polypeptides, Semaglutide, Tirzepatide

