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CERTIFICATE OF ANALYSIS
| PRODUCT: Leupeptin, Hemisulfate (Synthetic) | PRODUCT No.: L210 |
| CAS: 103476-89-7 | LOT No.: L-10040271-5 |
| MW: 475.6 | STORE: -20º C |
| FORMULA: C20H38N6O4 · 0.5H2SO4 | Country of Origin: Germany |
| Analysis | Specification | Results |
|---|---|---|
| Appearance | White powder | Conforms |
| Purity (HPLC, 220 nm) | ≥96.0% (area) | ≥96.5% |
| Optical Rotation | [α]22°D (c=1, H2O) Reported value only |
-76.0º |
| Peptide content | >70% | >85% |
| Water content (K.F.) | <10% | Conforms |
| Solubility | >50 mg/mL in H2O | Conforms |
| Stability: | Stable at -20 Cº for at least 2 years. Store dry and protect from light |
| QUALITY ASSURANCE: | Verified upon data received from supplier. |
FOR RESEARCH or FURTHER PROCESSING – NOT FOR HUMAN or DRUG USE