Ornidazole Impurity 12 CAS 166734-80-1
| CAS No. | 166734-80-1 |
| Molecular Formula | C7H10ClN3O3 |
| Molecular Weight | 219.63 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Ornidazole Impurity 12 (CAS 166734-80-1), a pharmacopoeial impurity reference standard (molecular formula C7H10ClN3O3, MW 219.63 g/mol) used for the identification and quantification of trace impurities in APIs.
Ornidazole Impurity 12 (C7H10ClN3O3) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), Ornidazole Impurity 12 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 | C7H10ClN3O3 |
| Molecular Weight | 219.63 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2004 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Ornidazole Standards
- S-Ornidazole (CAS 166734-83-4)
- Ornidazole Impurity 24 (CAS 1348117-98-5)
- Ornidazole Impurity 25 (CAS CATO-C4X-133125)
- Ornidazole impurity 32 (CAS 1826157-12-3)
- Ornidazole Impurity 65 (CAS CATO-C4X-133165)
- Ornidazole Impurity 7 (CAS 14419-11-5)
- Ornidazole Impurity 86 (CAS CATO-C4X-133186)
- Ornidazole (CAS 16773-42-5)
Recommended Standards
- 8-Chloro-5-methyl-6-oxo-5,6-dihydro-1,5-naphthyridine-2-carbonitrile (CAS 2407859-00-9)
- 8-CHloro-5h-[1,2,4]triazino[5,6-b]indol-3-amine (CAS 910443-03-7)
- 8-Chloro-[1,2,4]triazolo[1,5-a]quinoxalin-4-amine (CAS 679396-29-3)
- 6-chloro-1-methyl-1H-[1,2,3]triazolo[4,5-h]quinazoline (CAS 2463195-74-4)
- Dotinurad impurity 107 (CAS CATO-C4X-2494107)
- Cinacalcet Impurity N52 (CAS 1005450-55-4)
- Vericiguat Impurity 78 (CAS CATO-C4X-289678)
- 1-Benzyl-3-phenyl-1H-pyrazole-5-carboxylic acid (CAS 948292-93-1)
- 3-Cycloheptyl-1-(furan-2-ylmethyl)-1-(2-(thiophen-2-yl)ethyl)urea (CAS 1396868-86-2)
- tert-Butyl (R)-3-(methylsulfonyl)pyrrolidine-1-carboxylate (CAS 2381210-81-5)
- 4-Methylbenzylidene Camphor (CAS 36861-47-9)
- Perfluorohexylphosphonic Acid 4-Methylbenzamine (CAS 1263361-02-9)
- 7-Fluoro-3-methoxy-4-methyl-4H-benzo[e][1,2,4]thiadiazine 1,1-dioxide (CAS 1000576-22-6)
- Semaglutide impurity 290 (CAS CATO-C4X-2226290)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com