Cefmenoxime Impurity 1 CAS 184696-69-3
| CAS No. | 184696-69-3 |
| Molecular Formula | C8H8N2O3S |
| Molecular Weight | 212.23 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.
As a process- or degradation-related impurity, Cefmenoxime Impurity 1 (CAS 184696-69-3, C8H8N2O3S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Cefmenoxime Impurity 1 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 212.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), Cefmenoxime Impurity 1 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 | C8H8N2O3S |
| Molecular Weight | 212.23 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2009 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Cefmenoxime Standards
- Cefmenoxime Impurity 40 (CAS 21566-74-5)
- Cefmenoxime Impurity C14 (CAS 68350-02-7)
- Cefmenoxime HCl (CAS 75738-58-8)
- Cefmenoxime Impurity 10 (CAS CATO-C4X-147710)
- Cefmenoxime Impurity 11 (CAS CATO-C4X-147711)
- Cefmenoxime Impurity 2 (CAS 66340-45-2)
- Cefmenoxime Impurity 3 (CAS 126747-52-2)
- Cefmenoxime Impurity 6 (CAS CATO-C4X-14776)
Recommended Standards
- 1-(BROMOMETHYL)-3-(TRIFLUOROMETHYL)BENZENE 3-(BROMOMETHYL)BENZOTRIFLUORIDE 3-(TRIFLUOROMETHYL)BENZYL BROMIDE 4-(trifluoromethylthio) benzaldehyde 4021-50-5 A'-BROMO-A,A,A-TRIFLUORO-M-XYLENE ALPHA'-BROMO-ALPHA,ALPHA,ALPHA-TRIFLUORO-M-XYLENE LF10745 M-TRIFLUOROMETHYLBENZYL BROMIDE (CAS 4021-50-5)
- Zonisamide (CAS 68291-97-4)
- N,N,N',N'-Tetramethyl-P-phenylphosphonic diamide (CAS 3732-83-0)
- 2,3-Dihydro-6-methoxy-phenalen-1-one (CAS 100621-80-5)
- Vildagliptin Impurity 105 (CAS CATO-C4X-1100105)
- Piracetam impurity 42 (CAS CATO-C4X-123542)
- Rimegepant Impurity 55 (CAS CATO-C4X-248755)
- N-(4-tert-Butylphenyl)-6-nitroquinazolin-4-amine (CAS 882083-57-0)
- N-(4-Methoxyphenyl)-1-{8-oxa-3,5-diazatricyclo[7.4.0.0^{2,7}]trideca-1(9),2(7),3,5,10,12-hexaen-6-yl}piperidine-3-carboxamide (CAS 1112292-91-7)
- 2-Bromo-4-(5,6-dimethylbenzo[d]oxazol-2-yl)-N,N-dimethylaniline (CAS 1706447-95-1)
- 1-(3-chloro-2-fluorophenyl)-2-methylpropan-1-one (CAS 1341641-88-0)
- 2-(tert-Butyl)-5-chloro-7-methylindoline (CAS 596083-18-0)
- 2-(4-methylphenyl)-2-(4-methylpiperidin-1-yl)ethanamine (CAS 915923-71-6)
- Semaglutide impurity 260 (CAS CATO-C4X-2226260)
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