Cefotaxime EP Impurity B CAS 66340-28-1
Purity >90%In StockPharmacopoeial Impurity Standards
| CAS No. | 66340-28-1 |
| Molecular Formula | C14H15N5O6S2 |
| Molecular Weight | 413.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Cefotaxime EP Impurity B (CAS 66340-28-1) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C14H15N5O6S2. Molecular weight: 413.43 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C14H15N5O6S2 |
| Molecular Weight | 413.43 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 2 |
Related Cefotaxime Standards
- Cefotaxime Impurity 21 (CAS CATO-C4X-120121)
- Cefotaxime Impurity 24 (CAS CATO-C4X-120124)
- Cefotaxime open ring lactone (CAS CATO-C4X-120141)
- Cefotaxime Impurity 76 (CAS CATO-C4X-120176)
- Cefotaxime Impurity 97 (CAS CATO-C4X-120197)
- Cefotaxime Impurity 50 (CAS CATO-C4X-120150)
- Cefotaxime Impurity 50 (CAS CATO-C4X-120157)
- Cefotaxime Impurity 95 (CAS CATO-C4X-120195)
Recommended Standards
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- L-Lysine compound with 3-methyl-2-oxobutanoic acid (1:1) (CAS 78000-30-3)
- (Des-Gly2)-Exenatide trifluoroacetate salt (CAS 1678416-78-8)
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 13829788188 / jacky.chen@cato-chem.com