Cefixime Impurity 80 CAS CATO-C4X-113980
| CAS No. | CATO-C4X-113980 |
| Molecular Formula | C25H24N2O5S |
| Molecular Weight | 464.53 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Cefixime Impurity 80 (CAS CATO-C4X-113980), a pharmacopoeial impurity reference standard (molecular formula C25H24N2O5S, MW 464.53 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Cefixime Impurity 80 (C25H24N2O5S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 464.53 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).
As a certified reference material (CRM), Cefixime Impurity 80 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 | C25H24N2O5S |
| Molecular Weight | 464.53 g/mol |
| Purity | ≥90% |
| 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Cefixime Standards
- Cefixime Impurity 20 (CAS CATO-C4X-113920)
- Cefixime Methyl Ester Impurity (CAS 88621-01-6)
- Cefixime Impurity 81 (CAS CATO-C4X-113981)
- Cefixime Impurity 12 (CAS 1335555-87-7)
- Cefixime Impurity 55 (CAS CATO-C4X-113955)
- Cefixime impurity 85 (CAS CATO-C4X-113985)
- Cefixime Impurity C16 (CAS 1335475-08-5)
- Cefixime Impurity 100 (CAS CATO-C4X-1139100)
Recommended Standards
- Apremilast Impurity 126 (CAS CATO-C4X-1009126)
- Cefdinir Impurity 85 (CAS CATO-C4X-121085)
- Methyl 2-(4,5-dimethoxy-2-{[4-(2-methoxyphenyl)piperazin-1-yl]sulfonyl}phenyl)acetate (CAS 497060-56-7)
- Ruxolitinib Impurity 215 (CAS CATO-C4X-2058215)
- Cefotaxime Impurity 10 (CAS CATO-C4X-120110)
- Tofacitinib Impurity 31 (CAS 923036-25-3)
- Apalutamide Impurity 25 (CAS CATO-C4X-274925)
- 2-Chlorobicyclo[4.2.0]Octa-1,3,5-triene-7-carbonitrile (CAS 103447-24-1)
- tert-butyl 3-benzoyl-3-fluoro-azetidine-1-carboxylate (CAS 2507826-31-3)
- 3-(4-Fluoro-2-methylphenyl)benzoic acid (CAS 874133-65-0)
- 3-Hydroxy-3-(2-oxocyclohexyl)indolin-2-one (CAS 76325-79-6)
- 5,6-Dideoxy-2-C-ethenyl-3,4-O-(1-methylethylidene)-1-O-(triphenylmethyl)-L-arabino-hex-5-enitol (CAS 681853-98-5)
- N-(Cyclohex-1-en-1-yl)aniline (CAS 10592-26-4)
- Semaglutide Impurity 187 (CAS CATO-C4X-2226187)
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