Tofacitinib Impurity 33 CAS 1640971-60-3
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 1640971-60-3 |
| Molecular Formula | C14H20N6O |
| Molecular Weight | 288.35 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
High-purity Tofacitinib Impurity 33 (CAS 1640971-60-3) pharmacopoeial impurity standards reference standard. Molecular formula: C14H20N6O. Molecular weight: 288.35 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C14H20N6O |
| Molecular Weight | 288.35 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Nitrogen Atoms | 6 |
Related Tofacitinib Standards
- Tofacitinib Impurity 160 (CAS CATO-C4X-1079160)
- Tofacitinib Nitroso Impurity 190 (CAS CATO-C4X-1079190)
- Tofacitinib Impurity 68 (CAS CATO-C4X-107968)
- Tofacitinib Impurity 59 (CAS 2250241-69-9)
- Tofacitinib Impurity 12 (CAS 477600-76-3)
- Tofacitinib Impurity 75 (CAS CATO-C4X-107975)
- Tofacitinib Impurity 76 (CAS CATO-C4X-107976)
- Tofacitinib Nitroso Impurity 191 (CAS CATO-C4X-1079191)
Recommended Standards
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- Aceclofenac Ethyl (EsterAceclofenac EP Impurity E) (CAS 139272-67-6)
- (E/Z)-FK-506 26,28-Allylic Ester Rearrangement Impurity (CAS CATO-C4X-130012)
- 5-isobutyl-2-methyl-4-nitro-pyrazole-3-carbonyl chloride (CAS 2639995-96-1)
- 3-Chloro-4-(trifluoromethyl)benzyl bromide (CAS 361393-92-2)
- (4,5-Dibromo-3-(difluoromethyl)pyridin-2-yl)methanol (CAS 1806809-08-4)
- 5-((4-(4-Chlorophenyl)piperazin-1-yl)methyl)-2-methylpyrimidin-4-amine (CAS 189744-35-2)
- (Thr(PO3H2)231)-Tau Peptide (225-237) trifluoroacetate salt (CAS 1670270-09-3)
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