Metronidazole EP Impurity G CAS 1010-93-1
| CAS No. | 1010-93-1 |
| Molecular Formula | C6H7N3O4 |
| Molecular Weight | 185.14 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 185.14 g/mol gives Metronidazole EP Impurity G distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Metronidazole EP Impurity G (CAS 1010-93-1) is a certified pharmaceutical impurity reference standard with the molecular formula C6H7N3O4 and a molecular weight of 185.14 g/mol.
Based on its molecular formula C6H7N3O4, Metronidazole EP Impurity G contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 185.14 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 EP Impurity G 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 | C6H7N3O4 |
| Molecular Weight | 185.14 g/mol |
| Appearance | Off-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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 3 |
Related Metronidazole Standards
- Metronidazole Impurity 10 (CAS 56750-04-0)
- Metronidazole-hydroxy D2 (CAS 2196180-19-3)
- Metronidazole-d4 (CAS 1261392-47-5)
- Metronidazole-13C2,15N2 (CAS 1173020-03-5)
- Metronidazole-d3 (CAS 83413-09-6)
- Metronidazole Impurity 15 (CAS 110578-73-9)
- Metronidazole Impurity 18 (CAS 113385-77-6)
- Metronidazole EP Impurity E (CAS 705-19-1)
Recommended Standards
- 344912-39-6 (5-Methyl-3-nitro-1H-pyrazol-1-yl)acetic acid DTXSID10361199 (CAS 344912-39-6)
- Pretomanid Impurity 21 (CAS CATO-C4X-260621)
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- 2-(2-Fluoro-5-nitrophenyl)ethanol (CAS 1021389-31-0)
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- Cyano(4-phenoxyphenyl)methyl 2-(4-chlorophenyl)-3-methylbutanoate (CAS 66827-38-1)
- Sacubitril Impurity N38 (CAS 2216746-87-9)
- 4-iodoisobenzofuran-1,3-dione (CAS 28418-88-4)
- 6-Bromo-4-fluoro-1H-indazole (CAS 885520-23-0)
- Tert-butyl 3-hydroxy-2,3-dihydrospiro[indene-1,4'-piperidine]-1'-carboxylate (CAS 185525-42-2)
- 4-Amino-N-(5-bromo-2-fluorophenyl)benzenesulfonamide (CAS 1153254-78-4)
- Peptide Impurity 12 (CAS CATO-CPTD788812)
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