Fenoterol Impurity 4 CAS 161040-25-1
Purity >90%In StockPharmacopoeial Impurity Standards
| CAS No. | 161040-25-1 |
| Molecular Formula | C18H21NO4 |
| Molecular Weight | 315.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Fenoterol Impurity 4 (CAS 161040-25-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H21NO4. Molecular weight: 315.36 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C18H21NO4 |
| Molecular Weight | 315.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >90% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 2003 |
| Nitrogen Atoms | 1 |
Related Fenoterol Standards
- Fenoterol EP Impurity A (S, R-Isomer) (CAS 391234-95-0)
- Fenoterol EP Impurity A(R,S-Isomer) (CAS 391234-97-2)
- Fenoterol (CAS 13392-18-2)
- Fenoterol EP Impurity B (Enantiomer Mixture) (CAS 699525-61-6)
- Fenoterol Impurity 6 (CAS CATO-C4X-20776)
- Fenoterol O-β-D-Glucuronide (CAS 61046-78-4)
- Fenoterol EP Impurity A HBr (CAS 38964-10-2)
- Fenoterol Hydrobromide Impurity B (CAS 3371-33-3)
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- Liraglutide Impurity 19 TFA Salt (CAS CATO-C4X-199219)
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