Tofacitinib Impurity 87 CAS 4124-41-8
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 4124-41-8 |
| Molecular Formula | C14H14O5S2 |
| Molecular Weight | 326.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Tofacitinib Impurity 87 (CAS 4124-41-8) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C14H14O5S2. Molecular weight: 326.39 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C14H14O5S2 |
| Molecular Weight | 326.39 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Sulfur Atoms | 2 |
Related Tofacitinib Standards
- Tofacitinib Impurity 113 (CAS CATO-C4X-1079113)
- Tofacitinib Impurity 48 (CAS CATO-C4X-107948)
- Tofacitinib Impurity 232 (CAS CATO-C4X-1079232)
- Tofacitinib Impurity 119 (CAS 2407039-29-4)
- Tofacitinib Impurity 139 (CAS CATO-C4X-1079139)
- Tofacitinib Impurity 159 (CAS 1640971-51-2)
- Tofacitinib Impurity 171 (CAS CATO-C4X-1079171)
- Tofacitinib Impurity 231 (CAS 2101951-20-4)
Recommended Standards
- Vardenafil Impurity 52 (CAS 224789-22-4)
- Cefotiam Impurity 29 (CAS CATO-C4X-120429)
- N-Nitroso N-Desisopropyl Disopyramide (CAS CATO-C3D-262125)
- Clomipramine HCl EP Impurity A DiHCl (CAS CATO-C4X-12653)
- Vardenafil Nitroso Impurity 27 (CAS CATO-C4X-101727)
- 1,1',3,3,3',3'-Hexamethylindotricarbocyanine perchlorate (CAS 16595-48-5)
- (2-(Bromomethyl)-3,4,5-trichlorophenyl)boronic acid (CAS 1072946-53-2)
- 3-(1,3-Benzodioxol-5-yl)-1-(3,4,5-trimethoxyphenyl)-2-propen-1-one (CAS 209158-91-8)
- 2,5-Dibromo-3,4-difluoroaniline (CAS 1455435-87-6)
- Semaglutide impurity 249 (CAS CATO-C4X-2226249)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com