Metronidazole Impurity 35 CAS CATO-C4X-140535
| CAS No. | CATO-C4X-140535 |
| Molecular Formula | C3H2N4O3 |
| Molecular Weight | 142.07 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Metronidazole Impurity 35 is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Metronidazole Impurity 35 (CAS CATO-C4X-140535), a pharmacopoeial impurity reference standard (molecular formula C3H2N4O3, MW 142.07 g/mol) used for the identification and quantification of trace impurities in APIs.
Metronidazole Impurity 35 (C3H2N4O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
CATO manufactures Metronidazole Impurity 35 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C3H2N4O3 |
| Molecular Weight | 142.07 g/mol |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Nitrogen Atoms | 4 |
Related Metronidazole Standards
- Metronidazole Impurity 16 (CAS 138169-63-8)
- Metronidazole Impurity 26 (CAS 5006-79-1)
- Metronidazole Impurity 31 (CAS CATO-C4X-140531)
- Metronidazole Impurity 11 (CAS 3034-41-1)
- Metronidazole Impurity 24 (CAS 3034-42-2)
- Metronidazole EP Impurity C (CAS 5006-69-9)
- Metronidazole EP Impurity D (CAS 5006-68-8)
- Metronidazole-d (CAS 1794791-19-7)
Recommended Standards
- N-Nitroso Metronidazole Impurity 32 (CAS CATO-C4X-140532)
- 3,3,3-Trifluoro-N-hydroxypropanimidamide (CAS 1016726-53-6)
- Fluconazole Impurity 74 (CAS CATO-C4X-101974)
- 3,3,3-Trifluoropropyl formate (CAS 1344118-09-7)
- Landiolol Impurity 42 (CAS CATO-C4X-262142)
- Tobramycin Impurity 12 xHAc (CAS 51736-77-7(free base))
- Avibactam Impurity 137 (CAS CATO-C4X-1348137)
- Ethyl 3-(4-nitrobenzoyl)-5-(pyridin-2-yl)indolizine-1-carboxylate (CAS 252201-19-7)
- 1-(2-(Allyloxy)ethoxy)-4-(benzyloxy)benzene (CAS 1354967-78-4)
- 2-(Phenylamino)-3a,4,6,6a-tetrahydrothieno[3,4-d]thiazole 5,5-dioxide (CAS 1325303-65-8)
- 3,5-Difluoro-4-(oxan-4-yloxy)benzoic acid (CAS 1275432-84-2)
- methyl (2R)-2-(tert-butoxycarbonylamino)-4-iodo-butanoate (CAS 219752-75-7)
- 6-Chloro-2-methyl-3-(1-methylpyrrolidin-2-yl)pyridine (CAS 1352519-15-3)
- Tirzepatide Impurity 15 (CAS CATO-C4X-324015)
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