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

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