Cefazedone Impurity 3 CAS 70149-63-2
| CAS No. | 70149-63-2 |
| Molecular Formula | C15H13Cl2N3O5S |
| Molecular Weight | 418.25 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Cefazedone Impurity 3 (C15H13Cl2N3O5S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Cefazedone Impurity 3 (CAS 70149-63-2) is a certified pharmaceutical impurity reference standard with the molecular formula C15H13Cl2N3O5S and a molecular weight of 418.25 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 Cefazedone Impurity 3 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 | C15H13Cl2N3O5S |
| Molecular Weight | 418.25 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Cefazedone Standards
- Cefazedone impurity 16 (CAS CATO-C4X-117116)
- Cefazedone lactone (CAS 70150-41-3)
- Cefazedone Impurity 12 (CAS CATO-C4X-117112)
- Cefazedone Impurity 12 (CAS 788106-07-0)
- Cefazedone impurity 17 (CAS CATO-C4X-117117)
- Cefazedone impurity 18 (CAS CATO-C4X-117118)
- Cefazedone Impurity 2 (CAS 56187-36-1)
- Cefazedone Impurity 10 (CAS CATO-C4X-117110)
Recommended Standards
- 2-((3-(Benzo[d][1,3]dioxol-5-yl)-1H-1,2,4-triazol-5-yl)thio)-1-(4-bromophenyl)ethanone (CAS 140406-05-9)
- 1-(Tert-butyl) 2-methyl (2S,4S)-4-(5-bromo-2-fluorophenoxy)pyrrolidine-1,2-dicarboxylate (CAS 2442510-50-9)
- (E)-N'-((Perfluorophenyl)methylene)-2-(trifluoromethyl)benzenesulfonohydrazide (CAS 2301998-97-8)
- 1-(Tert-butyl) 2-methyl (2S,4S)-4-(3-bromo-4-fluorophenoxy)pyrrolidine-1,2-dicarboxylate (CAS 2442510-52-1)
- Macitentan Impurity 48 (CAS CATO-C4X-117548)
- Phloroglucinol Impurity 25 (CAS 108-36-1)
- Streptomycin impurity 3 (CAS CATO-C4X-22713)
- 2-(1H-Imidazol-1-yl)propan-1-ol (CAS 191725-72-1)
- 2-{[3-(3-methoxyphenyl)-1,2,4-oxadiazol-5-yl]sulfanyl}acetic acid (CAS 1284136-51-1)
- 2-{4-[(hydroxyimino)methyl]-2-methoxyphenoxy}-N-mesitylacetamide (CAS 721916-24-1)
- (S)-5-(tert-butoxycarbonyl)-5-azaspiro[2.3]Hexane-4-carboxylic acid (CAS 1931909-28-2)
- 1-[3-Chloro-5-(trifluoromethyl)phenyl]cyclopentanecarbonitrile (CAS 2114424-38-1)
- 3-(2-(Pyridin-2-yl)ethoxy)propanenitrile (CAS 91029-14-0)
- D-Asp9-Tirzepatide (CAS CATO-CPTD788923)
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