Ensifentrine impurity 6 CAS 298680-38-3
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 298680-38-3 |
| Molecular Formula | C33H32N4O5 |
| Molecular Weight | 564.63 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Ensifentrine impurity 6 (CAS 298680-38-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C33H32N4O5. Molecular weight: 564.63 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C33H32N4O5 |
| Molecular Weight | 564.63 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 20.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 4 |
Related Ensifentrine Standards
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Recommended Standards
- Endotoxin Substrate (CAS 68223-96-1)
- 2-(3-(Hydroxymethyl)-4-(8-((5-methyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazin-2-yl)amino)imidazo[1,2-b]pyridazin-6-yl)pyridin-2-yl)-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-1(2H)-one (CAS 1433820-83-7)
- (11bR)-2,6-Bis(3,5-dimethylphenyl)-4-hydroxy-8,9,10,11,12,13,14,15-octahydrodinaphtho[2,1-d:1’,2’-f][1,3,2]dioxaphosphepine 4-Oxide (CAS 1065214-95-0)
- Darolutamide impurity 10 (CAS 1976022-48-6)
- Loteprednol impurity 14 (CAS 182068-96-8)
- 2-Bromo-3-methoxy-5-methylpyrazine (CAS 1401072-21-6)
- 2,3,6-Trichloro-7-nitroquinoxaline (CAS 121830-25-9)
- Tert-butyl 4-(4-(methoxycarbonyl)benzyl)piperazine-1-carboxylate (CAS 844891-11-8)
- (2R,3R,4R,5R)-5-(2-Amino-6-chloro-9H-purin-9-yl)-2-(hydroxymethyl)-4-methoxytetrahydrofuran-3-ol (CAS 194034-59-8)
- Semaglutide Impurity 183 (CAS 159541-28-3)
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