Tofacitinib Impurity 4 CAS 477600-73-0
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 477600-73-0 |
| Molecular Formula | C20H25N5 |
| Molecular Weight | 335.45 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Order Tofacitinib Impurity 4 (CAS 477600-73-0) pharmacopoeial impurity standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C20H25N5. Molecular weight: 335.45 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C20H25N5 |
| Molecular Weight | 335.45 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 5 |
Related Tofacitinib Standards
- Tofacitinib Impurity 228 (CAS CATO-C4X-1079228)
- Tofacitinib Impurity 37 (CAS 1252883-90-1)
- Tofacitinib Impurity 38 (CAS 1092578-45-4)
- Tofacitinib Impurity 39 (CAS 2459302-80-6)
- Tofacitinib Impurity 162 (CAS CATO-C4X-1079162)
- Tofacitinib Impurity 65 (CAS CATO-C4X-107965)
- Tofacitinib Impurity 32 (CAS CATO-C4X-107932)
- Tofacitinib Impurity 238 (CAS CATO-C4X-1079238)
Recommended Standards
- 4-Butoxy-N-(sec-butyl)naphthalene-1-sulfonamide (CAS 1007688-35-8)
- N-(2-(Dimethylamino)-2-(1-methyl-1H-pyrrol-2-yl)ethyl)-1-(m-tolyl)methanesulfonamide (CAS 1049419-28-4)
- N-Isopropyl-6-(pentyloxy)naphthalene-2-sulfonamide (CAS 1206149-75-8)
- Perampanel Impurity 26 (CAS CATO-C4X-243026)
- Dolutegravir Impurity 48 (CAS CATO-C4X-162048)
- N-benzyl-N-methyl-3-nitrobenzamide (CAS 195140-22-8)
- 4-Amino-6-chloropicolinic acid (CAS 546141-56-4)
- 2-Chloro-6-fluorophenylacetic Acid (CAS 37777-76-7)
- 2,5-Diiodobenzoic acid (CAS 14192-12-2)
- Tripeptide-10 citrulline (CAS 960531-53-7)
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