Fmoc-L-Lys(Boc)-OH

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Fmoc-L-Lys(Boc)-OH (CAS No. 71989-26-9) is a dual-protected lysine used in Fmoc-based SPPS, especially for synthesizing GLP-1 peptides and related drugs like Semaglutide and Tirzepatide. With 99% min purity and high chemical stability, it enables efficient peptide chain assembly in both research and industrial production.

• CAS No.: 71989-26-9
• Molecular Formula: C₂₆H₃₂N₂O₆
• Purity: 99% min

• Appearance White powder
• Molecular Weight 468.5 g/mol
• Density 1.2 ± 0.1 g/cm³
• Boiling Point 685.7 ± 55.0 °C at 760 mmHg
• Melting Point 130–135 °C (decomposition)
• Flash Point 368.5 ± 31.5 °C
• Packaging 25 kg / fibre drum
• Customs Code 29224999
• Storage Conditions Store in a cool, dry place, tightly sealed to maintain stability

• Product Name
  1. Fmoc-Lys(Boc)-OH;
  2. Na-Fmoc-Ne-Boc-L-lysine;
  3. Fmoc-L-Lys (Boc)-OH;
  4. Nepsilon-Boc-Nalpha-Fmoc-L-lysine
• Production Capacity 5 ton/month
• Applications Raw material for GLP-1 peptide synthesis, polypeptides, Semaglutide, and Tirzepatide