Oxazepam impurity 9 CAS CATO-C4X-30909
| CAS No. | CATO-C4X-30909 |
| Molecular Formula | C15H12ClNO3 |
| Molecular Weight | 289.71 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 289.71 g/mol gives Oxazepam impurity 9 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Oxazepam impurity 9 (CAS CATO-C4X-30909, C15H12ClNO3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Oxazepam impurity 9 (C15H12ClNO3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), Oxazepam impurity 9 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.
Physical & Chemical Properties
| Molecular Formula | C15H12ClNO3 |
| Molecular Weight | 289.71 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Oxazepam Standards
Recommended Standards
- 4-Chloro-N-(4-(hydrazinecarbonyl)phenyl)benzamide (CAS 100278-52-2)
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- Pranoprofen impurity 69 (CAS CATO-C4X-181169)
- Bromhexine Impurity 45 (CAS CATO-C4X-106045)
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- Granisetron Impurity 12 (CAS 106649-02-9)
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- 2-(4-Methoxybenzylidene)-3,4-dihydronaphthalen-1(2H)-one (CAS 49629-37-0)
- 3-Hydroxy-1-[3-(trifluoromethyl)phenyl]-4,5-dihydro-1H-pyrazole (CAS 58773-10-7)
- Cycloheptyl isocyanide (CAS 134420-07-8)
- Ethyl 3-(hydroxymethyl)bicyclo[1.1.1]pentane-1-carboxylate (CAS 2095495-83-1)
- (1S,4R,5R)-2-(tert-butoxycarbonyl)-2-azabicyclo[2.1.1]Hexane-5-carboxylic acid (CAS 1821811-14-6)
- Prolactin-Releasing Peptide (1-31) (rat) (CAS 215510-06-8)
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