Atorvastatin Impurity 73 CAS CATO-C4X-113273
| CAS No. | CATO-C4X-113273 |
| Molecular Formula | C47H60FN3O8 |
| Molecular Weight | 813.99 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Atorvastatin Impurity 73 (CAS CATO-C4X-113273) is a certified pharmaceutical impurity reference standard with the molecular formula C47H60FN3O8 and a molecular weight of 813.99 g/mol.
Structurally, Atorvastatin Impurity 73 (C47H60FN3O8) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 19.0, corresponding to approximately 19 ring(s) or double-bond equivalent(s). With a molecular weight of 813.99 g/mol, it falls into the high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), Atorvastatin Impurity 73 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C47H60FN3O8 |
| Molecular Weight | 813.99 g/mol |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Atorvastatin Standards
- Atorvastatin Impurity 40 (CAS CATO-C4X-113240)
- Atorvastatin Impurity 78 (CAS 1116118-82-1)
- Atorvastatin Acyl-beta-D-glucuronide (CAS 463962-58-5)
- Atorvastatin EP Impurity F (CAS 1371615-56-3)
- Atorvastatin Calcium EP Impurity F (CAS 887196-24-9)
- Atorvastatin Impurity 57 (CAS 425408-16-8)
- Atorvastatin Impurity 67 (CAS 693793-87-2)
- Atorvastatin 3-Isopropyl Ether tert-Butyl Ester (CAS 1797009-04-1)
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