Formoterol Impurity 87 CAS CATO-C4X-152587
| CAS No. | CATO-C4X-152587 |
| Molecular Formula | C19H24N2O3 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C19H24N2O3C2HF3O2, Formoterol Impurity 87 contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 442.43 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a process- or degradation-related impurity, Formoterol Impurity 87 (CAS CATO-C4X-152587, C19H24N2O3C2HF3O2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C19H24N2O3 C2HF3O2 |
| Molecular Weight | 442.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Formoterol Standards
- Formoterol Impurity 69 (CAS 100865-09-6)
- Formoterol-d6(Mixture of Diastereomers) (CAS 1020719-45-2)
- Formoterol Impurity 22 HCl (CAS 1049695-95-5)
- Formoterol Impurity 72 (CAS 108971-53-5)
- Formoterol EP Impurity B (CAS 1224588-66-2)
- Formoterol Impurity 19 (CAS 126002-14-0)
- Formoterol Impurity 28 (CAS 126587-86-8)
- Formoterol (Mixture of Diastereomers) (CAS 128954-45-0)
Recommended Standards
- Mivacurium chloride Impurity 60 (CAS CATO-C4X-137560)
- Nintedanib Impurity 159 (CAS CATO-C4X-1814159)
- Acetylcysteine Impurity 24 (CAS CATO-C4X-153224)
- (4-Fluoro-3-(pyridin-4-yl)phenyl)boronic acid (CAS 425379-14-2)
- Promethazine Impurity 52 (CAS CATO-C4X-141852)
- 2-(Benzyloxy)-1,5-dichloro-3-fluorobenzene (CAS 1881327-93-0)
- [3-(Dodecyloxy)-2-hydroxypropyl]diethyl[2-[(1-oxoallyl)oxy]ethyl]ammonium Chloride (CAS 93804-70-7)
- Avanafil Impurity 118 (CAS CATO-C4X-1118118)
- 1-(Pyrimidin-2-yl)propan-2-one (CAS 75782-22-8)
- Semaglutide impurity 259 (CAS CATO-C4X-2226259)
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