Tofacitinib Impurity 20 CAS 1092578-43-2
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 1092578-43-2 |
| Molecular Formula | C16H20N6O |
| Molecular Weight | 312.37 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Tofacitinib Impurity 20 (CAS 1092578-43-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C16H20N6O. Molecular weight: 312.37 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C16H20N6O |
| Molecular Weight | 312.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 6 |
Related Tofacitinib Standards
- (Rac)-Tofacitinib (CAS 1259404-17-5)
- Tofacitinib Impurity 1 (CAS 1092578-46-5)
- Tofacitinib Impurity 2 (CAS 1092578-48-7)
- Tofacitinib Impurity 245 (CAS CATO-C4X-1079245)
- Tofacitinib Impurity 3 (CAS 1092578-47-6)
- Tofacitinib Impurity 34 (Mixture of Diastereomers) (CAS 344418-92-4)
- Tofacitinib Base (CAS 477600-75-2)
- Tofacitinib Impurity 236 (CAS CATO-C4X-1079236)
Recommended Standards
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- Tamoxifen EP Impurity G (CAS 68047-07-4)
- Cilastatin Impurity 37 (CAS CATO-C4X-196037)
- 1-(2-Chlorobenzyl)-5-oxo-N-(3-(trifluoromethyl)phenyl)pyrrolidine-2-carboxamide (CAS 477768-25-5)
- 2-(2-Methoxyethyl)pyrimidine-4-carboxylic acid (CAS 1092299-86-9)
- 2'-Chloro-4',4'-difluoro-4',5'-dihydrospiro[piperidine-4,7'-thieno[2,3-c]pyran] (CAS 1307248-44-7)
- 2,5-Bis(decyloxy)terephthalohydrazide (CAS 694472-71-4)
- Liraglutide-d8 Tetratrifluoroacetate (CAS 204656-20-2 (non-labelled, free base))
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