Tofacitinib Impurity 31 CAS 923036-25-3
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 923036-25-3 |
| Molecular Formula | C20H24ClN5 |
| Molecular Weight | 369.89 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Tofacitinib Impurity 31 (CAS 923036-25-3) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C20H24ClN5. Molecular weight: 369.89 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C20H24ClN5 |
| Molecular Weight | 369.89 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Related Tofacitinib Standards
- Tofacitinib Impurity 134 (CAS CATO-C4X-1079134)
- Tofacitinib Impurity 135 (CAS CATO-C4X-1079135)
- Tofacitinib Impurity 136 (CAS 2803420-43-9)
- Tofacitinib Impurity 214 (CAS CATO-C4X-1079214)
- Tofacitinib Impurity 223 (CAS CATO-C4X-1079223)
- Tofacitinib Impurity 229 (CAS CATO-C4X-1079229)
- Tofacitinib Impurity 202 (CAS CATO-C4X-1079202)
- Tofacitinib Impurity 51 (CAS 2504210-38-0)
Recommended Standards
- Trazodone impurity 51 (CAS CATO-C4X-177251)
- 5-[[3-Chloro-4-(2-cyclohexylethoxy)phenyl]methylene]-2,4-thiazolidinedione-d4 (CAS 1795137-28-8)
- 6-(((4-Chlorobenzyl)thio)methyl)-N,N-dimethyl-2-phenylpyrimidin-4-amine (CAS 338961-74-3)
- Argatroban Impurity 108 (CAS CATO-C4X-1007108)
- Atorvastatin Impurity 132 (CAS 160449-60-5)
- 4-(4-Bromophenyl)-3H-1,2,4-triazole-3,5(4H)-dione (CAS 107553-79-7)
- Methyl 3-amino-3-(2-chloro-3-methylphenyl)propanoate (CAS 1824403-22-6)
- 1-([1,2,4]Triazolo[4,3-b]pyridazin-6-yl)piperidin-4-amine (CAS 1525554-57-7)
- 3-Amino-8-(trifluoromethyl)bicyclo[3.2.1]octan-8-ol (CAS 1251924-77-2)
- Semaglutide impurity 273 (CAS CATO-C4X-2226273)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 13829788188 / jacky.chen@cato-chem.com