Ensifentrine impurity 50 CAS 39201-71-3
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 39201-71-3 |
| Molecular Formula | C18H22N2O |
| Molecular Weight | 282.38 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Ensifentrine impurity 50 (CAS 39201-71-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H22N2O. Molecular weight: 282.38 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C18H22N2O |
| Molecular Weight | 282.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- Dapagliflozin Impurity N15 (CAS 610-71-9)
- Methyl 2-amino-5-iodothiazole-4-carboxylate (CAS 1235034-76-0)
- Methyl 4-bromobenzenesulfonate (CAS 6213-85-0)
- (3,5-Difluorobenzyl)hydrazine hydrochloride (CAS 1864073-05-1)
- 3-(Benzo[d][1,3]dioxol-5-ylmethyl)-6-morpholino-2-thioxo-2,3-dihydroquinazolin-4(1H)-one (CAS 689766-75-4)
- Semaglutide impurity 47 (CAS CATO-C4X-222647)
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