Phenylephrine Impurity 93 CAS CATO-C4X-146793
| CAS No. | CATO-C4X-146793 |
| Molecular Formula | C9H9NO4 |
| Molecular Weight | 195.17 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Phenylephrine Impurity 93 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Phenylephrine Impurity 93 (CAS CATO-C4X-146793) is a certified pharmaceutical impurity reference standard with the molecular formula C9H9NO4 and a molecular weight of 195.17 g/mol.
The molecular framework of Phenylephrine Impurity 93 (C9H9NO4) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C9H9NO4 |
| Molecular Weight | 195.17 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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 |
| Nitrogen Atoms | 1 |
Related Phenylephrine Standards
- Phenylephrine Impurity N1 (CAS 18791-20-3)
- Phenylephrine Impurity 71 (CAS CATO-C4X-146771)
- Phenylephrine Impurity N2 (CAS 3571-34-4)
- Phenylephrine Impurity 82 (CAS CATO-C4X-146782)
- Phenylephrine Impurity 25 (CAS 85299-04-3)
- Phenylephrine Impurity 56 (CAS CATO-C4X-146756)
- Phenylephrine Impurity 36 (CAS CATO-C4X-146736)
- Phenylephrine Impurity 89 (CAS CATO-C4X-146789)
Recommended Standards
- Metoclopramide Impurity 85 (CAS 1882-76-4)
- Levodopa Impurity 12 (CAS 25520-73-4)
- Metoclopramide EP Impurity H (CAS 50-86-2)
- Oseltamivir Impurity 133 (CAS 10098-40-5)
- Tinidazole impurity 28 (CAS CATO-C4X-193028)
- Dronedarone Impurity 17 (CAS CATO-C4X-109217)
- Mupirocin EP Impurity A (CAS 40980-51-6)
- 9-Benzyl-6-vinyl-9H-purine (CAS 160516-02-9)
- Atogepant Impurity 17 (CAS CATO-C4X-328517)
- 5-(2,6-Dimethoxyphenyl)-3-pyridinecarbaldehyde (CAS 887973-87-7)
- N-(2-ethoxyphenyl)-2-(2-(4-ethylphenoxy)acetyl)hydrazine-1-carboxamide (CAS 892834-41-2)
- 5-Bromo-2-((tert-butoxycarbonyl)amino)nicotinic acid (CAS 1936654-00-0)
- 2-Chloro-6-(2-ethyl-1H-imidazol-1-yl)pyridine (CAS 1343435-09-5)
- Semaglutide Impurity 188 (CAS CATO-C4X-2226188)
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