Ceftiofur Impurity 9 CAS CATO-C4X-15819
| CAS No. | CATO-C4X-15819 |
| Molecular Formula | C32H27N7O11S5 |
| Molecular Weight | 845.92 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, Ceftiofur Impurity 9 is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 845.92 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).
Ceftiofur Impurity 9 (CAS CATO-C4X-15819) is a certified pharmaceutical impurity reference standard with the molecular formula C32H27N7O11S5 and a molecular weight of 845.92 g/mol.
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 manufactures Ceftiofur Impurity 9 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C32H27N7O11S5 |
| Molecular Weight | 845.92 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) | 23.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 7 |
| Sulfur Atoms | 5 |
Related Ceftiofur Standards
- Ceftiofur Impurity 12 (CAS 120905-00-2)
- Ceftiofur Impurity 8 (CAS CATO-C4X-15818)
- Ceftiofur Impurity 6 (CAS CATO-C4X-15816)
- Ceftiofur Impurity 4 (CAS CATO-C4X-15814)
- Ceftiofur Impurity 21 (CAS CATO-C4X-158121)
- Ceftiofur Impurity 14 (CAS CATO-C4X-158114)
- Ceftiofur Impurity 15 (CAS CATO-C4X-158115)
- Ceftiofur Impurity 11 (CAS CATO-C4X-158111)
Recommended Standards
- Ertugliflozin impurity 15 (CAS CATO-C4X-301115)
- Paclitaxel EP Impurity Q (CAS 502626-06-4)
- Dapagliflozin Impurity 73 (CAS CATO-C4X-113873)
- Paclitaxel Impurity 59 (CAS CATO-C4X-184259)
- Methotrexate Impurity 44 (CAS 93528-16-6)
- Avanafil Impurity 106 (CAS CATO-C4X-1118106)
- Atorvastatin Cyclic Fluorophenyl Impurity(Calcium Salt) (CAS CATO-C4X-113281)
- 1-(3-Chlorophenyl)-5-(4-chlorophenyl)-N-methyl-1H-pyrazole-3-carboxamide (CAS 477713-33-0)
- 2-Amino-1-(2-methoxy-5-methylphenyl)-4,5-dimethyl-1H-pyrrole-3-carbonitrile (CAS 1094367-90-4)
- n-Methyl-N-(2-(piperidin-4-yl)ethyl)cyclohexanamine dihydrochloride (CAS 1219964-08-5)
- Methyl 1-cyclopentylbenzimidazole-5-carboxylate (CAS 1355246-90-0)
- 4-(prop-2-en-1-yl)oxan-4-amine (CAS 1440962-46-8)
- Ethyl 4-(2-(2-(pyrimidin-2-ylamino)thiazol-4-yl)acetamido)piperidine-1-carboxylate (CAS 1226429-72-6)
- Semaglutide Impurity 122 (CAS CATO-C4X-2226122)
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