Tofacitinib Impurity 71 CAS 134965-85-8
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 134965-85-8 |
| Molecular Formula | C12H7ClN6 |
| Molecular Weight | 270.68 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Tofacitinib Impurity 71 (CAS 134965-85-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C12H7ClN6. Molecular weight: 270.68 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C12H7ClN6 |
| Molecular Weight | 270.68 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 6 |
Related Tofacitinib Standards
- Tofacitinib Impurity 22 (CAS 2227199-28-0)
- Tofacitinib Impurity 111 (CAS 2183519-70-0)
- Tofacitinib Impurity 114 (CAS CATO-C4X-1079114)
- Tofacitinib Impurity 158 (CAS CATO-C4X-1079158)
- Tofacitinib Impurity 203 (CAS CATO-C4X-1079203)
- Tofacitinib Impurity 242 (CAS CATO-C4X-1079242)
- Tofacitinib Nitroso Impurity 187 (CAS CATO-C4X-1079187)
- Tofacitinib Impurity N48 (CAS 1638499-35-0)
Recommended Standards
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- Atrasentan Impurity 128 (CAS 1063835-95-9)
- N'-(3,5-dimethylbenzoyl)-N'-(2,2-dimethylpentan-3-yl)-3-methoxy-2-methylbenzohydrazide (CAS 755013-53-7)
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- (S)-N-(3-(4-Carbamimidoylbenzamido)propyl)-1-((2,4-dichloro-3-(((2,4-dimethylquinolin-8-yl)oxy)methyl)phenyl)sulfonyl)pyrrolidine-2-carboxamide methanesulfonate (CAS 515880-69-0)
- 2-((1H-Indol-3-yl)methyl)-8-bromo-3-hydroxyquinoline-4-carboxylic acid (CAS 924634-63-9)
- Calcium-Like Peptide 3 (CAS 261969-05-5)
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