Cefdinir USP Related Compound B CAS 79350-10-0
| CAS No. | 79350-10-0 |
| Molecular Formula | C14H14N4O4S2 |
| Molecular Weight | 366.42 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Cefdinir USP Related Compound B is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 366.42 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a process- or degradation-related impurity, Cefdinir USP Related Compound B (CAS 79350-10-0, C14H14N4O4S2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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), Cefdinir USP Related Compound B 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 | C14H14N4O4S2 |
| Molecular Weight | 366.42 g/mol |
| Purity | >90% |
| Storage | Store at 2-8°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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 2 |
Related Cefdinir Standards
- Cefdinir Impurity 5 (CAS 178949-04-7)
- Cefdinir Impurity 62 (CAS CATO-C4X-121062)
- Cefdinir Impurity 65 (CAS CATO-C4X-121065)
- Cefdinir Impurity 39 (CAS 104797-47-9)
- Cefdinir Impurity 66 (CAS CATO-C4X-121066)
- Cefdinir Impurity 6 (CAS 79350-14-4)
- Cefdinir Impurity 2 (CAS CATO-C4X-12102)
- 3-Methyl cefdinir (CAS 71091-93-5)
Recommended Standards
- tert-Butyl 4-[3-cyano-6-(pyrazin-2-yl)pyridin-2-yl]piperazine-1-carboxylate (CAS 946385-48-4)
- Rilpivirine (Z-Isomer) (CAS 500287-94-5)
- Rilpivirine (CAS 500287-72-9)
- Ruxolitinib Impurity 29 (CAS CATO-C4X-205829)
- Avibactam impurity 109 (CAS CATO-C4X-1348109)
- Cefotaxime Impurity 89 (CAS CATO-C4X-120189)
- Niraparib Impurity 57 (CAS 343778-18-7)
- 3-Iodo-2-methylpyridine (CAS 15112-62-6)
- 1-(4-Fluorobenzyl)-1H-1,2,3-triazole-4,5-dicarboxylic acid (CAS 1260949-79-8)
- 2-(Methoxycarbonyl)chroman-6-carboxylic acid (CAS 2765076-93-3)
- (9H-Fluoren-9-yl)methyl (20-hydroxy-3,6,9,12,15,18-hexaoxaicosyl)carbamate (CAS 868594-44-9)
- 5-(((tert-Butoxycarbonyl)amino)methyl)thiophene-2-carboxylic acid (CAS 160938-97-6)
- 6-bromo-2-ethyl-N,8-dimethylimidazo[1,2-a]pyridin-3-amine (CAS 1628264-07-2)
- Allo-Thr5-Tirzepatide (CAS CATO-CPTD788934)
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