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