Metronidazole Impurity 27 CAS 34916-84-2
| CAS No. | 34916-84-2 |
| Molecular Formula | C4H6N2O3S |
| Molecular Weight | 162.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Metronidazole Impurity 27 (CAS 34916-84-2), a certified reference material (molecular formula C4H6N2O3S, MW 162.17 g/mol) for analytical method development and quality control.
Based on its molecular formula C4H6N2O3S, Metronidazole Impurity 27 contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 162.17 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 is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C4H6N2O3S |
| Molecular Weight | 162.17 g/mol |
| Purity | 97%+ |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Metronidazole Standards
- Metronidazole-d (CAS 1794791-19-7)
- Metronidazole EP Impurity C (CAS 5006-69-9)
- Metronidazole EP Impurity D (CAS 5006-68-8)
- Metronidazole Impurity 31 (CAS CATO-C4X-140531)
- Metronidazole Impurity N30 (CAS 56910-52-2)
- Metronidazole Impurity 15 (CAS 110578-73-9)
- Metronidazole Impurity 18 (CAS 113385-77-6)
- Metronidazole EP Impurity E (CAS 705-19-1)
Recommended Standards
- Hydroxy(1H-imidazol-4-yl)methanesulfinic acid (CAS 950820-62-9)
- rac N-Nitroso Thiazolidine-4-carboxylic Acid (CAS 88381-44-6)
- Hydroxy(1H-imidazol-2-yl)methanesulfinic acid (CAS 950820-61-8)
- (4R)-N-Nitroso Thiazolidine-4-carboxylic Acid (CAS 86594-16-3)
- 1-[(3-Chlorophenyl)methyl]-5-[3-(trifluoromethyl)phenyl]-1H-1,2,3,4-tetrazole (CAS 303144-94-7)
- (S)-2-((tert-Butoxycarbonyl)amino)-3-(2,4-dichlorophenyl)propanoic acid (CAS 114873-04-0)
- N-Allyl-4-chlorobenzamide (CAS 5866-99-9)
- 1401425-43-1 [3-(2-Piperidin-1-ylethoxy)phenyl]amine dihydrochloride MFCD22123366 (CAS 1401425-43-1)
- N-(3,4-Dichlorophenyl)-2-((4-ethyl-5-(furan-2-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 578758-84-6)
- 3-Hydroxy-5,6-diphenyl-1,2,4-triazine (CAS 4512-00-9)
- 2-(Ethylthio)-1-methyl-1H-imidazole-5-carbaldehyde (CAS 191411-48-0)
- 4-Chloro-6-(4-(trifluoromethoxy)phenyl)pyrimidine (CAS 954221-84-2)
- 3,6-Dichloro-2-(trifluoromethyl)pyridine (CAS 89719-91-5)
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