H-Asp(OtBu)-OH

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Website: http://aminoacids-en.com/2-5-43-h-asp-otbu-oh.html

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
1. L-Aspartic acid 4-tert-butyl ester;
2. H-Asp(OtBu)-OH;
3. (S)-2-Amino-4-(tert-butoxy)-4-oxobutanoic acid;
4. (2S)-2-amino-4-(tert-butoxy)-4-oxobutanoic acid;
5. (2S)-2-amino-4-[(2-methylpropan-2-yl)oxy]-4-oxobutanoic acid;
6. 4-tert-Butyl hydrogen L-aspartate;
7. l-aspartic acid, 4-(1,1-dimethylethyl) ester
Applications Raw material for GLP-1 peptide synthesis, polypeptides, Semaglutide, Tirzepatide

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