Cefminox Impurity 45 CAS CATO-C4X-192645
| CAS No. | CATO-C4X-192645 |
| Molecular Formula | C14H19N3O7S2 |
| Molecular Weight | 405.45 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 Cefminox Impurity 45.
CATO supplies Cefminox Impurity 45 (CAS CATO-C4X-192645), a pharmacopoeial impurity reference standard (molecular formula C14H19N3O7S2, MW 405.45 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Cefminox Impurity 45 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 405.45 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).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a certified reference material (CRM), Cefminox Impurity 45 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 | C14H19N3O7S2 |
| Molecular Weight | 405.45 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related Cefminox Standards
- Cefminox Impurity 30 (CAS CATO-C4X-192630)
- Cefminox Impurity 17 (CAS CATO-C4X-192617)
- Cefminox impurity 51 (CAS CATO-C4X-192651)
- Cefminox Impurity 40 (CAS CATO-C4X-192640)
- Cefminox impurity 53 (CAS CATO-C4X-192653)
- Cefminox impurity 56 (CAS CATO-C4X-192656)
- Cefminox Impurity 4 (CAS CATO-C4X-19264)
- Cefminox Sodium Impurity 20 (CAS 57617-09-1)
Recommended Standards
- Risdiplam Impurity 4 (CAS CATO-C4X-30124)
- Tadalafil Impurity 106 (CAS 1356345-67-9)
- Z-Tyr(Bzl)-OH (CAS 16677-29-5)
- tert-Butyl 17-bromoheptadecanoate (CAS 2428400-70-6)
- Azacitidine Impurity 54 (CAS 16033-23-1)
- Roxatidine Impurity 76 (CAS CATO-C4X-121377)
- Medroxyprogesterone Impurity 12 (CAS 61345-71-9)
- tert-Butyl 4-bromo-3-fluorobenzyl(cyclopentyl)carbamate (CAS 1704096-61-6)
- (Z)-4-(5-(4-chlorobenzylidene)-4-oxo-2-thioxothiazolidin-3-yl)butanoic acid (CAS 17385-93-2)
- 2-Bromo-3-cyano-4-methylbenzenesulfonyl chloride (CAS 1807164-95-9)
- 7-Benzyl-2-chloro-4-methoxy-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidine (CAS 1781077-93-7)
- Ethyl 6-nitro-2-(trifluoromethyl)imidazo[1,2-a]pyridine-3-carboxylate (CAS 2407339-51-7)
- (S)-3-chloro-2-(pyrrolidin-3-yloxy)-5-(trifluoromethyl)pyridine hydrochloride (CAS 1417789-61-7)
- Semaglutide impurity 197 (CAS CATO-C4X-2226197)
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