Atorvastatin EP Impurity A（Calcium salt） CAS 433289-83-9
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 433289-83-9 |
| Molecular Formula | 2*C33H35N2O5 Ca |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Atorvastatin EP Impurity A（Calcium salt） (CAS 433289-83-9) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: 2*C33H35N2O5 Ca. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | 2*C33H35N2O5 Ca |
| Molecular Weight | 579.73 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 17.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
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Recommended Standards
- Evocalcet Impurity 38 (CAS 2167323-88-6)
- Dapagliflozin Impurity 190 (CAS CATO-C4X-1138190)
- (2R)-2-(3-Chloro-4-(methylsulfonyl)phenyl)-3-(2-oxocyclopentyl)propanoic acid (CAS 625113-52-2)
- (R)-3,3,3-trifluoro-2-hydroxy-2-methyl-propionic acid ethyl ester (CAS 1262860-78-5)
- 2-(Butylthio)-4-(4-chlorophenyl)-6-(p-tolyl)nicotinonitrile (CAS 339199-79-0)
- 3<I>H</I>-1,2-benzodithiol-3-one (CAS 1677-27-6)
- D-Ser32-Tirzepatide (CAS CATO-CPTD788677)
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