Ornidazole Impurity 77 CAS CATO-C4X-133177
| CAS No. | CATO-C4X-133177 |
| Molecular Formula | C7H12N3O7P |
| Molecular Weight | 281.16 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Ornidazole Impurity 77 is closely related to a carbohydrate-derived structure, an amide group, a phosphate ester group in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Ornidazole Impurity 77 (CAS CATO-C4X-133177), a pharmacopoeial impurity reference standard (molecular formula C7H12N3O7P, MW 281.16 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Ornidazole Impurity 77 (C7H12N3O7P) contains a carbohydrate-derived structure, an amide group, a phosphate ester group. The molecule exhibits a degree of unsaturation (DBE) of 3.5, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 281.16 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).
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 | C7H12N3O7P |
| Molecular Weight | 281.16 g/mol |
| Appearance | 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, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| Nitrogen Atoms | 3 |
Related Ornidazole Standards
- Ornidazole Impurity 100 (CAS CATO-C4X-1331100)
- Ornidazole Impurity 105 (CAS CATO-C4X-1331105)
- Ornidazole Impurity 41 (CAS CATO-C4X-133141)
- Ornidazole Impurity 61 (CAS CATO-C4X-133161)
- Ornidazole impurity 50 (CAS CATO-C4X-133150)
- Ornidazole Impurity 79 (CAS CATO-C4X-133179)
- Ornidazole Impurity 82 (CAS CATO-C4X-133182)
- Ornidazole Impurity 20 (CAS 1413431-46-5)
Recommended Standards
- 1-[5-(2-bromophenyl)thiophen-2-yl]ethan-1-one (CAS 1049872-66-3)
- 85992-25-2 1-Chloronaphtho[2,1-b]thiophene-2-carbonyl chloride DTXSID20522335 (CAS 85992-25-2)
- 2-Bromo-1-(5-phenylthiophen-2-yl)ethan-1-one (CAS 10531-43-8)
- Thiophene-2,5-disulfonyl dichloride (CAS 79279-35-9)
- Cyclophosphamide EP Impurity C (CAS 334-22-5)
- Ampicillin Impurity 75 (CAS CATO-C4X-144375)
- Afatinib Impurity 48 (CAS 3005278-77-0)
- 8-Chloro-2-(4-isobutylphenyl)quinoline-4-carboxylic acid (CAS 862710-15-4)
- 4-Dimethylamino-2-oxobut-3-enoic acid ethyl ester (CAS 67751-14-8)
- 3-(4-Bromo-1H-pyrazol-1-yl)-6-chloropyridazine (CAS 957035-33-5)
- 3-Amino-4-(cyclopentylamino)benzoic acid (CAS 476634-96-5)
- Amlodipine impurity 128 (CAS CATO-C4X-1095128)
- Potassium trifluoro(3-methylthiophen-2-yl)borate (CAS 2201050-63-5)
- Semaglutide Impurity 12 (CAS CATO-C4X-222612)
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