H-Glu(OtBu)-OH

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H-Glu(OtBu)-OH (CAS 2419-56-9) is the tert-butyl ester of L-glutamic acid, commonly used as a side-chain-protected building block in peptide synthesis. Its tert-butyl group prevents undesired side reactions during SPPS workflows, especially in GLP-1 peptide production.

CAS No.: 2419-56-9
Molecular Formula: C₉H₁₇NO₄
Purity: 99% min

Appearance White solid
Molecular Weight 203.24 g/mol
Density 1.1 ± 0.1 g/cm³
Boiling Point 336.4 ± 37.0 °C at 760 mmHg
Fusing Point 182 °C
Flash Point 157.3 ± 26.5 °C
Packaging 25 kg / fibre drum
Storage Conditions Store at 2–8 °C
Customs Code 29224999
Production capacity 1 ton/month

Product Name
1. H-Glu(OtBu)-OH;
2. L-Glutamic acid 5-tert-butyl ester;
3. L-Glutamic acid, 5-(1,1-dimethylethyl) ester;
4. (S)-2-Amino-5-(tert-butoxy)-5-oxopentanoic acid;
5. 5-tert-Butyl L-Glutamate;
6. (2S)-2-amino-5-(tert-butoxy)-5-oxopentanoic acid;
7. (2S)-2-amino-5-[(2-methylpropan-2-yl)oxy]-5-oxopentanoic acid
Applications Raw material for GLP-1 peptide synthesis, polypeptides

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