Ornidazole Impurity 75 CAS 2643942-47-4
| CAS No. | 2643942-47-4 |
| Molecular Formula | C7H9Cl3N3O4P |
| Molecular Weight | 336.50 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Ornidazole Impurity 75 (CAS 2643942-47-4) is a certified pharmaceutical impurity reference standard with the molecular formula C7H9Cl3N3O4P and a molecular weight of 336.50 g/mol.
Based on its molecular formula C7H9Cl3N3O4P, Ornidazole Impurity 75 contains an amide group, a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 336.50 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C7H9Cl3N3O4P |
| Molecular Weight | 336.50 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | ≥95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2002 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Ornidazole Standards
- Ornidazole Impurity 113 (CAS CATO-C4X-1331113)
- Ornidazole Impurity 76 (CAS CATO-C4X-133176)
- Ornidazole Impurity 80 (CAS CATO-C4X-133180)
- Ornidazole Impurity 74 (CAS CATO-C4X-133174)
- Ornidazole Impurity 53 (CAS CATO-C4X-133153)
- Ornidazole Impurity 108 (CAS CATO-C4X-1331108)
- Ornidazole Impurity 69 (CAS CATO-C4X-133169)
- Ornidazole Impurity 22 (CAS 74550-92-8)
Recommended Standards
- 3-(3-Methylbutyl)-2-sulfanyl-5-(thiophen-2-yl)-3h,4h-thieno[2,3-d]pyrimidin-4-one (CAS 731827-19-3)
- Leucomalachite Green-D6 (CAS 1173021-13-0)
- 2,2,3,3-Tetramethyl-4,7,10,13-tetraoxa-3-silahexadecan-16-oic acid (CAS 1807540-77-7)
- 5β-PREGNAN-3α, 11β, 20β-TRIOL (CAS 10417-85-3)
- Abemaciclib Impurity 24 (CAS CATO-C4X-293724)
- Perampanel Impurity 24 (CAS CATO-C4X-243024)
- Dasatinib impurity 60 (CAS CATO-C4X-160760)
- 7-Iodobenzofuran, 97% (CAS 1388049-96-4)
- 4-Bromo-6-fluoropyridin-3-amine (CAS 1514932-24-1)
- methyl (2S)-2-(furan-2-ylformamido)propanoate (CAS 17107-27-6)
- 2-hydroxyethyl ((benzyloxy)carbonyl)-L-tryptophanate (CAS 642478-72-6)
- N-Hexyl-N-(3-methyl-1,2,4-oxadiazol-5-yl)cyclohexanecarboxamide (CAS 62347-50-6)
- 3-((4-Bromophenyl)thio)-1-(4-methoxyphenyl)propan-1-one (CAS 882749-17-9)
- Compstatin control peptide (CAS 301544-78-5)
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