Roflumilast impurity 22 CAS 343927-62-8
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 343927-62-8 |
| Molecular Formula | C5H5ClN2O |
| Molecular Weight | 144.56 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Roflumilast impurity 22 (CAS 343927-62-8) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C5H5ClN2O. Molecular weight: 144.56 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C5H5ClN2O |
| Molecular Weight | 144.56 g/mol |
| Purity | 97%+ |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Roflumilast Standards
- Roflumilast Impurity 30 (CAS 34809-82-0)
- Roflumilast impurity 18 (CAS 7051-34-5)
- Roflumilast Impurity 27 (CAS 74976-40-2)
- Roflumilast USP Related Compound C (CAS 22889-78-7)
- Roflumilast Impurity 31 (CAS 268225-79-2)
- Roflumilast Impurity 17 (CAS 91872-02-5)
- Roflumilast Impurity 13 (CAS 53173-70-9)
- Roflumilast impurity 19 (CAS 151103-08-1)
Recommended Standards
- 3-Chloro-6-methoxypyridazine (CAS 1722-10-7)
- Minoxidil EP Impurity B (CAS 156-83-2)
- 5-Chloro-1,3-benzenediol (CAS 52780-23-1)
- Peramivir Impurity 29 TFA salt (CAS CATO-C4X-183329)
- Sulbactam Impurity 18 (CAS CATO-C4X-175618)
- 2-Chloro-3-(1-(methylsulfonyl)piperidin-3-yl)pyrazine (CAS 1316221-65-4)
- 2-(3,4,5-Trifluorophenyl)cyclopropane-1-carboxylic acid (CAS 1410819-23-6)
- 1-(2-Fluorophenyl)cyclohexan-1-ol (CAS 109794-37-8)
- Baricitinib Impurity 108 (CAS CATO-C4X-2260108)
- Semaglutide Impurity 82 (CAS CATO-C4X-222682)
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