Tetracycline EP Impurity C CAS 1665-56-1
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 1665-56-1 |
| Molecular Formula | C22H22N2O7 |
| Molecular Weight | 426.42 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Tetracycline EP Impurity C (CAS 1665-56-1) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C22H22N2O7. Molecular weight: 426.42 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C22H22N2O7 |
| Molecular Weight | 426.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
Related Tetracycline Standards
- Tetracycline EP Impurity D (CAS 7518-17-4)
- Tetracycline Impurity 9 (CAS CATO-C4X-23319)
- Tetracycline Impurity 8 (CAS CATO-C4X-23318)
- Tetracycline EP Impurity B (CAS 6542-44-5)
- Tetracycline EP Impurity A (CAS 79-85-6)
- Tetracycline-d6 (CAS CATO-CCHM702732)
- Tetracycline-d6 (CAS 2373374-42-4)
- Tetracycline impurity 5 (CAS CATO-C4X-23315)
Recommended Standards
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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