Spironolactone EP Impurity C CAS 976-70-5
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 976-70-5 |
| Molecular Formula | C22H30O3 |
| Molecular Weight | 342.47 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Spironolactone EP Impurity C (CAS 976-70-5) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C22H30O3. Molecular weight: 342.47 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C22H30O3 |
| Molecular Weight | 342.47 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Spironolactone Standards
- Spironolactone Impurity 16 (CAS CATO-C4X-134516)
- Spironolactone EP Impurity F (CAS 976-71-6)
- Spironolactone Impurity 19 (CAS CATO-C4X-134519)
- Spironolactone Impurity 17 (CAS CATO-C4X-134517)
- Spironolactone Impurity 10 (CAS 53866-23-2)
- Spironolactone Impurity 12 (CAS CATO-C4X-134512)
- Spironolactone Gammalactone Impurity (CAS 20802-57-7)
- Spironolactone Impurity 15 (CAS CATO-C4X-134515)
Recommended Standards
- Dodecanoylalanylalanine (CAS CATO-C3D-263159)
- Megestrol Acetate EP Impurity B (CAS 3562-63-8)
- Testosterone Propionate EP Impurity D (CAS 977-32-2)
- Valsartan Impurity 82 (CAS 1189547-11-2)
- Azelastine Impurity 50 (CAS CATO-C4X-139650)
- 3-(5-Chloro-4-fluoropyridin-3-yl)propan-1-amine (CAS 1393538-95-8)
- tert-Butyl N-[(pyrrolidin-3-yl)methyl]carbamate hydrochloride (CAS 1188263-69-5)
- 4-Bromo-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (CAS 2095797-20-7)
- 3,5-Dihydroxy-4-isopropylbenzoic acid (CAS 1213826-92-6)
- Liraglutide Impurity 30 (CAS CATO-C4X-199230)
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