Oxazepam Impurity 2 CAS 17977-76-3
| CAS No. | 17977-76-3 |
| Molecular Formula | C15H12Cl2N2O2 |
| Molecular Weight | 323.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Oxazepam Impurity 2 is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Oxazepam Impurity 2 (CAS 17977-76-3) is a high-purity analytical reference standard with the molecular formula C15H12Cl2N2O2 and a molecular weight of 323.17 g/mol.
Structurally, Oxazepam Impurity 2 (C15H12Cl2N2O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 323.17 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Oxazepam Impurity 2 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 | C15H12Cl2N2O2 |
| Molecular Weight | 323.17 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Oxazepam Standards
Recommended Standards
- n,n'-Bis(4-chlorophenyl)propanediamide (CAS 17722-20-2)
- 2-(2-Chloroacetamido)-n-(4-chlorophenyl)benzamide (CAS 18871-31-3)
- N,N'-Bis(3-chlorophenyl)propanediamide (CAS 17722-14-4)
- (2,4-Dichlorophenyl)(7-methoxybenzofuran-2-yl)methanol (CAS 477858-44-9)
- Ketene tert-butyl tert-butyldimethylsilyl acetal (CAS 74786-02-0)
- Methyl 5-(4-chloro-2-fluorophenyl)nicotinate (CAS 1346691-87-9)
- Ethyl 2,4-dichloro-1,6-naphthyridine-3-carboxylate (CAS 1186189-34-3)
- 1-Adamantanemethanol (CAS 770-71-8)
- 3-Chloro-1-cyclopropyl-5,6,7,8-tetrahydroisoquinoline-4-carbonitrile (CAS 1707581-97-2)
- 6-(Trifluoromethyl)-2-azaspiro[3.3]heptanehydrochloride (CAS 2209112-05-8)
- (2-(3-bromophenyl)-1H-imidazol-4-yl)methanol (CAS 1342421-06-0)
- Indobufen Impurity 26 (CAS CATO-C4X-179226)
- 3-Bromo-5-iodopyridin-4-ol (CAS 637348-83-5)
- Bax inhibitor peptide V5 (CAS 579492-81-2)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com