Atorvastatin Impurity 122 CAS CATO-C4X-1132122
| CAS No. | CATO-C4X-1132122 |
| Molecular Formula | C33H34FN2O7 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO supplies Atorvastatin Impurity 122 (CAS CATO-C4X-1132122), a pharmacopoeial impurity reference standard (molecular formula C33H34FN2O7Na, MW 612.63 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, Atorvastatin Impurity 122 is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 612.63 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C33H34FN2O7 Na |
| Molecular Weight | 612.63 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) | 17.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Atorvastatin Standards
- Atorvastatin Impurity 22 (CAS 1035205-25-4)
- Atorvastatin Calcium Propylene Glycol Solvate (CAS 1040350-07-9)
- Atorvastatin Lactone Diepoxide (CAS 1046118-40-4)
- Atorvastatin Lactam calcium Salt Impurity (CAS 1046118-41-5)
- Atorvastatin Impurity 86 (CAS 1046118-44-8)
- Atorvastatin Impurity 141 Calcium Salt (CAS 1046378-58-8)
- Atorvastatin Impurity 76 (CAS 1099474-28-8)
- Atorvastatin EP Impurity F(Calcium Salt) (CAS 1105067-87-5)
Recommended Standards
- Salicylic Acid Impurity 5 (CAS 26171-04-0)
- Galantamine EP Impurity F HBr (CAS 1556014-63-1)
- Imrecoxib Impurity 67 (CAS CATO-C4X-237967)
- tert-Butyl (5-(1-formylpyrrolidin-2-yl)pyridin-2-yl)(isobutyl)carbamate (CAS 1352494-24-6)
- 3,5-Dibromoaniline (CAS 626-40-4)
- Methyl 5-aminoquinoline-2-carboxylate (CAS 611231-33-5)
- 2-[(2-bromophenyl)formamido]-4-(methylsulfanyl)butanoic acid (CAS 1396971-17-7)
- 2-Bromo-1H-pyrrolo[2,3-b]pyridine (CAS 1083181-25-2)
- 3-methyl-3,4-dihydro-2H-1-benzothiopyran-4-one (CAS 771-17-5)
- Semaglutide impurity 275 (CAS CATO-C4X-2226275)
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 18665070610 / Nicole.chen@cato-chem.com