Spironolactone EP Impurity E CAS 33784-05-3
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 33784-05-3 |
| Molecular Formula | C24H32O4S |
| Molecular Weight | 416.57 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Spironolactone EP Impurity E (CAS 33784-05-3) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C24H32O4S. Molecular weight: 416.57 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C24H32O4S |
| Molecular Weight | 416.57 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Sulfur Atoms | 1 |
Related Spironolactone Standards
- Spironolactone (CAS 52-01-7)
- Spironolactone EP Impurity A (CAS 132458-33-4)
- Spironolactone D3 (CAS 52-01-7 (Unlabeled))
- Spironolactone EP Impurity I (CAS CATO-C4X-13459)
- Spironolactone Impurity 14 (CAS 53866-20-9)
- Spironolactone-d7(Major) (CAS CATO-CCAD302541)
- Spironolactone Impurity 20 (CAS CATO-C4X-134520)
- Spironolactone EP Impurity G (CAS 880106-10-5)
Recommended Standards
- Quetiapine impurity 73 (CAS CATO-C4X-124473)
- Captopril EP Impurity I (CAS CATO-C4X-119018)
- 1-(4-Hydroxy-3,5-dimethylphenyl)-2-((5-(4-pentylcyclohexyl)-1,3,4-oxadiazol-2-yl)thio)ethan-1-one (CAS 860611-09-2)
- Folic Acid EP Impurity F (CAS 1391194-56-1)
- Cisatracurium Besilate EP Impurity Q Besylate (CAS CATO-C4X-1850121)
- Ethyl 4-(aminomethyl)cyclohexane-1-carboxylate (CAS 104571-72-4)
- 3-Bromo-1-(tetrahydro-2H-pyran-2-yl)-5-(1-trityl-1H-1,2,4-triazol-3-yl)-1H-indazole (CAS 395102-98-4)
- 7-Fluoro-1H-indole-3-carbonitrile (CAS 1043601-55-3)
- 2-Bromopyrimidine-5-carboxamide (CAS 1209458-32-1)
- Palmitoyl Tripeptide-8 TFA salt (CAS 936544-53-5)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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