Oxazepam impurity 02 CAS 4015-28-5
| CAS No. | 4015-28-5 |
| Molecular Formula | C14H9ClN2 |
| Molecular Weight | 240.69 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Oxazepam impurity 02.
As a process- or degradation-related impurity, Oxazepam impurity 02 (CAS 4015-28-5, C14H9ClN2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Oxazepam impurity 02 (C14H9ClN2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 240.69 g/mol, it falls into the medium-molecular-weight range. 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).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
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 | C14H9ClN2 |
| Molecular Weight | 240.69 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Oxazepam Standards
Recommended Standards
- 6-Chloro-2-phenylquinazoline (CAS 58058-53-0)
- 6-Chloro-N-((tetrahydrofuran-2-yl)methyl)nicotinamide (CAS 603095-69-8)
- 6-chloro-1-methyl-spiro[2H-pyrido[3,2-d][1,3]oxazine-4,3'-tetrahydrofuran] (CAS 2761389-62-0)
- 7-Chloro-2-phenylquinazoline (CAS 867164-87-2)
- Amlodipine impurity 68 (CAS 88150-30-5)
- Hyoscyamine Impurity 10 (CAS CATO-C4X-343710)
- Iobitridol Impurity 6 (CAS CATO-C4X-31786)
- 2-(5-Methylfuran-3-carboxamido)benzoic acid (CAS 507463-78-7)
- 2-(2,4-Difluorophenyl)-1-(2-fluorophenyl)ethanone (CAS 1483427-28-6)
- ethyl 4-hydroxy-5-methyl-1,3-thiazole-2-carboxylate (CAS 133833-93-9)
- 1-Phenyl-7-(pyridin-3-yl)-5-(trifluoromethyl)-1H-benzo[d]imidazole (CAS 159725-99-2)
- (S)-1-(2-(piperidin-4-yl)phenyl)propan-1-amine (CAS 1213426-46-0)
- 3-(4-Methyl-1,2,3-thiadiazole-5-carboxamido)tetrahydrothiophene-3-carboxylic acid (CAS 1281921-52-5)
- Semaglutide impurity 277 (CAS CATO-C4X-2226277)
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