Cefuroxime Impurity 33 CAS 1467-70-5
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 1467-70-5 |
| Molecular Formula | C6H4O4 |
| Molecular Weight | 140.09 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
High-purity Cefuroxime Impurity 33 (CAS 1467-70-5) pharmacopoeial impurity standards reference standard. Molecular formula: C6H4O4. Molecular weight: 140.09 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C6H4O4 |
| Molecular Weight | 140.09 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Cefuroxime Standards
- Cefuroxime Impurity 41 (CAS 75884-38-7)
- Cefuroxime Sodium Impurity 14 (CAS 69384-96-9)
- Cefuroxime Sodium EP Impurity I (CAS 39684-61-2)
- Cefuroxime Impurity 41 (CAS CATO-C4X-124541)
- Cefuroxime Axetil Impurity 7 (CAS 59176-08-8)
- Cefuroxime Impurity 58 (CAS 54434-94-5)
- Cefuroxime Impurity 35 (CAS 883-40-9)
- Cefuroxime Impurity 82 (CAS CATO-C4X-124582)
Recommended Standards
- 2,6-Dihydroxy-2,5-cyclohexadiene-1,4-dione (CAS 35069-70-6)
- Coumalic Acid (CAS 500-05-0)
- 2,5-Dihydroxy-1,4-benzoquinone (CAS 615-94-1)
- Thiamine Impurity 15 (CAS 24941-82-0)
- Pregabalin Impurity 3 (CAS 916982-10-0)
- (S)-4-Aminotetrahydrofuran-2-one Hydrochloride (CAS 117752-82-6)
- 3-(ethyl[(9h-fluoren-9-ylmethoxy)carbonyl]amino)propanoic acid (CAS 172965-67-2)
- (3-chloropyridin-2-yl)zinc pivalate (0.60 mmol/g) (CAS 2021255-88-7)
- N-(3-cyano-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)acetamide (CAS 20036-97-9)
- Semaglutide impurity 86 (CAS CATO-C4X-152686)
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