Certificate of Analysis
| Product Name: | Columbin |
| Catalog Number: | M19356 |
| CAS Number: | 546-97-4 |
Physical and Chemical Properties
| Formula: | C20H22O6 |
| Molecular Weight: | 358.39 |
| Form: | Solid |
| Solubility: | DMSO ≥ 100 mg/mL |
| Storage: |
Powder -20°C 3 years ; 4°C 2 years In solvent -80°C 6 months ; -20°C 1 month |
| Chemical Structure: |  |
Analytical Data
| QC Standard: | >98% |
| H-NMR: | Consistent with structure |
Product Information
| Description: | Columbin is an orally active diterpenoid furanolactone from Calumbae radix, has anti-inflammatory and anti-trypanosomal effects. Columbin selectively inhibits COX-2 (EC50=53.1 μM) over COX-1 (EC50=327 μM). |
| Stability and Solubility Advice: | Information concerning product stability, particularly in solution, has rarely been reported and in most cases we can only offer a general guide. We recommend that stock solutions, once prepared, are stored aliquoted in tightly sealed vials and used within 1 month. Avoid repeated freeze and thaw cycles. Storage conditions for some special products should refer to their storage details. |