Certificate of Analysis
| Product Name: | (3S,4S)-Tofacitinib |
| Catalog Number: | M27778 |
| CAS Number: | 1092578-47-6 |
Physical and Chemical Properties
| Formula: | C16H20N6O |
| Molecular Weight: | 312.37 |
| Form: | Solid |
| Solubility: | DMSO ≥ 100 mg/mL (ultrasonic) |
| 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: | ≥99.0% |
| H-NMR: | Consistent with structure |
Product Information
| Description: | (3S,4S)-Tofacitinib is the less active S-enantiomer of Tofacitinib. Tofacitinib inhibits JAK3 with IC50 of 1 nM. |
| 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. |