Sivelestat Impurity 20 CAS 1842-55-3
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 1842-55-3 |
| Molecular Formula | C11H14N2O3 |
| Molecular Weight | 222.24 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Sivelestat Impurity 20 (CAS 1842-55-3) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C11H14N2O3. Molecular weight: 222.24 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C11H14N2O3 |
| Molecular Weight | 222.24 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
Related Sivelestat Standards
- Sivelestat sodium Impurity 1 (CAS 5973-34-2)
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- Sivelestat Impurity 15 (CAS 526-21-6)
- Sivelestat Impurity 17 (CAS 10167-30-3)
- Sivelestat Impurity 19 (CAS 612-34-0)
- Sivelestat Impurity 28 (CAS CATO-C4X-212328)
- Sivelestat Impurity 26 (CAS 4920-92-7)
- Sivelestat Impurity 27 (CAS CATO-C4X-212327)
Recommended Standards
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- Tenofovir alafenamide impurity 79 (CAS 126771-33-3)
- 2-{[(3,4-dichlorophenyl)carbamoyl]methanesulfonyl}acetic acid (CAS 338793-68-3)
- 8-Methoxy-1,3,7-trimethyl-3,7-dihydro-1H-purine-2,6-dione (CAS 569-34-6)
- 4-(1-Amino-2-methylpropan-2-yl)oxepan-4-ol (CAS 1508859-43-5)
- (4-Ethylstyryl)boronic acid (CAS 352525-96-3)
- Semaglutide impurity 227 (CAS CATO-C4X-2226227)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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