Cefazolin Impurity 16 CAS CATO-C4X-157716
| CAS No. | CATO-C4X-157716 |
| Molecular Formula | C14H16N8O5S3 |
| Molecular Weight | 472.52 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Cefazolin Impurity 16.
As a process- or degradation-related impurity, Cefazolin Impurity 16 (CAS CATO-C4X-157716, C14H16N8O5S3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Cefazolin Impurity 16 (C14H16N8O5S3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 472.52 g/mol, it falls into the moderately-high-molecular-weight range. 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 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), Cefazolin Impurity 16 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 | C14H16N8O5S3 |
| Molecular Weight | 472.52 g/mol |
| Purity | 97%+ |
| 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 |
| Nitrogen Atoms | 8 |
| Sulfur Atoms | 3 |
Related Cefazolin Standards
- Cefazolin Impurity 12 (CAS CATO-C4X-157712)
- Cefazolin Impurity 22 (CAS CATO-C4X-157722)
- Cefazolin EP Impurity I（Cefazolin USP RC L） (CAS 1675244-99-1)
- Cefazolin Impurity 67 (CAS CATO-C4X-157767)
- Cefazolin Impurity 30 (CAS CATO-C4X-157730)
- Cefazolin Impurity 52 (CAS CATO-C4X-157752)
- Cefazolin Impurity 69 (CAS CATO-C4X-157769)
- Cefazolin Impurity 71 (CAS CATO-C4X-157771)
Recommended Standards
- Perfluorophenyl 11-(trimethoxysilyl)undecanoate (CAS 944721-52-2)
- 2-((6-(Adamantan-1-yl)-3-cyano-4-(trifluoromethyl)pyridin-2-yl)thio)-2-phenylacetic acid (CAS 488827-01-6)
- 4-Bromo-N-(2-chloro-4-iodophenyl)benzenesulfonamide (CAS 1406294-50-5)
- Fluticasone impurity 114 (CAS 1227457-97-7)
- Vericiguat Impurity 40 TFA (CAS CATO-C4X-289640)
- Ornidazole Impurity 81 (CAS CATO-C4X-133181)
- Piperacillin impurity 94 (CAS CATO-C4X-173294)
- 1,6-Dimethyl-2,3-dihydro-1H-pyrrolo[2,3-b]pyridin-4-amine (CAS 468092-30-0)
- 2,4-Dichloro-6-(trifluoromethoxy)pyrimidine (CAS 137161-20-7)
- Loxoprofen impurity 94 (CAS CATO-C4X-148894)
- Ethyl 2-(piperidin-1-yl)thiazole-4-carboxylate (CAS 126533-98-0)
- 4-(5-(Methoxymethyl)-1,2,4-oxadiazol-3-yl)-1,2,5-oxadiazol-3-amine (CAS 890095-33-7)
- (2-Methoxyethyl)(4-methylbenzyl)amine hydrochloride (CAS 1049802-86-9)
- Glucagon-like peptide 2 (CAS 89750-15-2)
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