Cefuroxime Impurity 13 CAS 229499-08-5
| CAS No. | 229499-08-5 |
| Molecular Formula | C16H16N4O8S |
| Molecular Weight | 424.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Cefuroxime Impurity 13 (C16H16N4O8S) contains a flavonoid core, an amide group, a sulfone 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Cefuroxime Impurity 13 (CAS 229499-08-5), a pharmacopoeial impurity reference standard (molecular formula C16H16N4O8S, MW 424.39 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
As a certified reference material (CRM), Cefuroxime Impurity 13 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 | C16H16N4O8S |
| Molecular Weight | 424.39 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2022 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Cefuroxime Standards
- Cefuroxime Sodium EP Impurity E (CAS 97232-97-8)
- Cefuroxime Axetil EP Impurity D (CAS 55268-75-2)
- Cefuroxime Sodium EP Impurity B (CAS 39685-31-9)
- Cefuroxime Sodium EP Impurity G (CAS 97232-98-9)
- Cefuroxime-d3 (CAS 1803240-98-3)
- Cefuroxime impurity 106 (CAS CATO-C4X-1245106)
- Cefuroxime Impurity 48 (CAS CATO-C4X-124548)
- Cefuroxime Impurity 49 (CAS CATO-C4X-124549)
Recommended Standards
- N-(3-(benzyloxy)pyridin-2-yl)-4-(trifluoromethoxy)benzenesulfonamide (CAS 497060-26-1)
- (6R,7S)-Cefuroxime Isomer (CAS CATO-C4X-124519)
- Ethyl 3-((6-(benzo[d][1,3]dioxol-5-yl)-3-cyano-4-(trifluoromethyl)pyridin-2-yl)thio)propanoate (CAS 625376-94-5)
- 1-(4-(5-Fluoro-2-hydroxyphenyl)-2-hydroxy-4-methyl-2-(trifluoromethyl)pentyl)quinazolin-4(1H)-one (CAS 727376-92-3)
- Crotamiton Impurity 4 (CAS CATO-C4X-19564)
- Meloxicam impurity 13 (CAS CATO-C4X-169013)
- Cabazitaxel Impurity 15 (CAS CATO-C4X-111515)
- 3-(2-Chlorophenyl)-5-methyl-N-phenethylisoxazole-4-carboxamide (CAS 303134-66-9)
- 25870-78-4 (2E)-1-(3-Aminophenyl)-3-(4-methylphenyl)prop-2-en-1-one DTXSID60558330 (CAS 25870-78-4)
- 4,4,4-trifluorobut-2-yn-1-ol (CAS 113439-92-2)
- n-(4-Bromo-2-chlorophenyl)morpholine-4-carboxamide (CAS 895643-84-2)
- tert-Butyl 4-(4-chloro-5-methylpyrimidin-2-yl)piperazine-1-carboxylate (CAS 1261236-07-0)
- N-(4-Bromo-2-methylphenyl)-2-fluorobenzamide (CAS 330469-20-0)
- Renin Inhibitor Peptide (CAS 50410-01-0)
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