Spironolactone EP Impurity A CAS 132458-33-4
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 132458-33-4 |
| Molecular Formula | C24H30O4S |
| Molecular Weight | 414.56 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Spironolactone EP Impurity A (CAS 132458-33-4) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C24H30O4S. Molecular weight: 414.56 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C24H30O4S |
| Molecular Weight | 414.56 g/mol |
| Purity | >95% |
| Storage | Store at room temperature, 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Sulfur Atoms | 1 |
Related Spironolactone Standards
- Spironolactone EP Impurity E (CAS 33784-05-3)
- Spironolactone (CAS 52-01-7)
- Spironolactone Impurity 14 (CAS 53866-20-9)
- Spironolactone D3 (CAS 52-01-7 (Unlabeled))
- Spironolactone EP Impurity I (CAS CATO-C4X-13459)
- Spironolactone-d7(Major) (CAS CATO-CCAD302541)
- Spironolactone Impurity 20 (CAS CATO-C4X-134520)
- Spironolactone EP Impurity G (CAS 880106-10-5)
Recommended Standards
- Progesterone Impurity 10 (3β, 20S)-Pregn-5-ene-3,17,20-triol Sulfate) (CAS 4080-06-2)
- 2-((5-(Benzylthio)-1,3,4-thiadiazol-2-yl)thio)-N'-(1-phenylethylidene)acetohydrazide (CAS 315201-30-0)
- N,N-Dicyclohexyl-2-((3-(2-hydroxyphenyl)-1H-1,2,4-triazol-5-yl)thio)acetamide (CAS 336180-60-0)
- Emedastine Impurity 29 (CAS CATO-C4X-226729)
- Brivaracetam Impurity 172 (CAS CATO-C4X-2007172)
- 6-Bromo-2-(4-methoxyphenyl)imidazo[1,2-a]pyrimidine (CAS 860789-82-8)
- Fmoc-(r)-3-amino-3-(4-fluoro-phenyl)-propionic acid (CAS 479064-95-4)
- 9-(2-Naphthyl)anthracene (CAS 7424-72-8)
- 731773-12-9 1-Fluoro-4-(3-methylbut-3-en-1-yl)benzene DTXSID80641177 (CAS 731773-12-9)
- D-Thr7-Tirzepatide (CAS CATO-CPTD788924)
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