Cefixime Impurity 17 CAS CATO-C4X-113917
| CAS No. | CATO-C4X-113917 |
| Molecular Formula | C16H17N5O8S2 |
| Molecular Weight | 471.46 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Cefixime Impurity 17 (C16H17N5O8S2) 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. 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).
CATO supplies Cefixime Impurity 17 (CAS CATO-C4X-113917), a pharmacopoeial impurity reference standard (molecular formula C16H17N5O8S2, MW 471.46 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), Cefixime Impurity 17 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 | C16H17N5O8S2 |
| Molecular Weight | 471.46 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 | 5 |
| Sulfur Atoms | 2 |
Related Cefixime Standards
- Cefixime Impurity C16 (CAS 1335475-08-5)
- Cefixime Impurity 100 (CAS CATO-C4X-1139100)
- Cefixime EP Impurity A (CAS 1614255-90-1)
- Cefixime Impurity 51 (CAS CATO-C4X-113951)
- Cefixime Impurity 87 (CAS CATO-C4X-113987)
- Cefixime Impurity 12 (CAS 1335555-87-7)
- Cefixime Impurity 55 (CAS CATO-C4X-113955)
- Cefixime impurity 85 (CAS CATO-C4X-113985)
Recommended Standards
- Azilsartan Impurity 159 (CAS CATO-C4X-1096159)
- Mitoxantrone Impurity 29 (CAS CATO-C4X-103429)
- Mitoxantrone Impurity 28 (CAS CATO-C4X-103428)
- Eltrombopag Impurity 5 (CAS CATO-C4X-11985)
- Cyproterone Acetate EP Impurity B (CAS CATO-C4X-16013)
- Fudosteine Impurity 25 (CAS 121234-18-2)
- Olmesartan impurity 103 (CAS CATO-C4X-1097103)
- 5,6-Dimethylpyrazine-2,3-dicarboxylic acid dihydrate (CAS 41110-52-5)
- Ethyl 4-(4-methoxyphenoxy)-1,3-dimethyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylate (CAS 174842-34-3)
- N-(4-Methoxyphenyl)-2-phenylquinazolin-4-amine (CAS 438247-46-2)
- Prucalopride Impurity 21 (CAS 2636673-48-6)
- 4-(N-Methyl-N-trifluoroacetamide)-1-(3-pyridyl)-1-butanol (CAS 1346600-78-9)
- 5-Amino-2-methoxy-N-methylbenzamide (CAS 194025-85-9)
- Myelin Basic Protein (85-99) Peptide Antagonist (CAS 444305-16-2)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com