Fmoc-L-Leu-OH

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Fmoc-L-Leu-OH (CAS No. 35661-60-0) is a protected leucine derivative widely used in peptide synthesis. Thanks to its Fmoc-protected amino group, it allows for selective chain elongation in solid-phase synthesis. This compound plays an important role in the preparation of GLP-1 peptide drugs, including Semaglutide and Tirzepatide.

• CAS No.: 35661-60-0
• Molecular Formula: C₂₁H₂₃NO₄
• Purity: 99% min

• Appearance White solid
• Molecular Weight 353.4 g/mol
• Density 1.2 ± 0.1 g/cm³
• Boiling Point 559.8 ± 33.0 °C at 760 mmHg
• Melting Point 152–156 °C (lit.)
• Flash Point 292.4 ± 25.4 °C
• Packaging 25 kg / fibre drum
• Storage Conditions Keep sealed, cool and dry
• Customs Code 29242970
• Production Capacity 5 ton/month

• Product Name
  1. Fmoc-L-leucine;
  2. Fmoc-Leu-OH;
  3. Fmoc-L-Leu-OH;
  4. N-Fmoc-L-leucine;
  5. N-(9-fluorenylmethoxycarbonyl)-L-leucine;
  6. fmoc-leucine;
  7. N-[(9H-Fluoren-9-ylmethoxy)carbonyl]-L-leucine;
  8. (2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-4-methylpentanoic acid;
  9. n-(fluorenyl-9-methoxycarbonyl)leucine
• Applications Raw material for GLP-1 peptide synthesis, polypeptides, Semaglutide, and Tirzepatide