Atorvastatin Cyclic (Fluorophenyl) Impurity CAS 873950-18-6
| CAS No. | 873950-18-6 |
| Molecular Formula | C33H35FN2O7 |
| Molecular Weight | 590.65 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Atorvastatin Cyclic (Fluorophenyl) Impurity under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
As a process- or degradation-related impurity, Atorvastatin Cyclic (Fluorophenyl) Impurity (CAS 873950-18-6, C33H35FN2O7) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C33H35FN2O7, Atorvastatin Cyclic (Fluorophenyl) Impurity contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 590.65 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C33H35FN2O7 |
| Molecular Weight | 590.65 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Atorvastatin Standards
- Atorvastatin Impurity 110 (CAS 887470-43-1)
- Atorvastatin Impurity 129 (CAS 873950-17-5)
- Atorvastatin Impurity 156 (CAS CATO-C4X-1132156)
- Atorvastatin lactam methyl ester (CAS 1795790-02-1)
- Atorvastatin Impurity 137 (CAS CATO-C4X-1132137)
- Atorvastatin EP Impurity M (CAS 1146977-93-6)
- Atorvastatin Lactam Phenanthrene Methyl Ester(Mixture of Diastereomers) (CAS 906552-20-3)
- Atorvastatin Impurity 72 (CAS CATO-C4X-113272)
Recommended Standards
- Cefalonium Impurity 1 (CAS CATO-C4X-22541)
- 1033288-92-4 C31H42O11 Pre-schisanartanin B W2383 (CAS 1033288-92-4)
- Diphenyl(spiro[fluorene-9,7'-fluoreno[4,3-b]benzofuran]-3'-yl)phosphine (CAS 1799406-71-5)
- Di-Fmoc-alpha-methyl-DL-ornithine (CAS 1219207-80-3)
- Budesonide Impurity 17 (CAS CATO-C4X-138917)
- Bromfenac Impurity 73 (CAS CATO-C4X-200273)
- Dapagliflozin Impurity 28 (CAS 461432-28-0)
- 8-Benzyl-4-(naphthalene-1-carbonyl)-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid (CAS 1326811-55-5)
- 2-(2-Mercapto-4-oxo-4,5-dihydro-1,3-thiazol-5-yl)-N-quinolin-5-ylacetamide (CAS 1142207-28-0)
- 3-(4-(4-Ethoxy-2-methylphenyl)-5-methylthiazol-2-yl)aniline (CAS 1416347-08-4)
- N-(4-Acetyl-3-methylphenyl)acetamide (CAS 34956-31-5)
- Ethyl (5-bromopyridin-3-yl)carbamate (CAS 152684-24-7)
- 1-(3-(1h-Tetrazol-5-yl)phenyl)ethan-1-one (CAS 1105679-23-9)
- Semaglutide impurity 28 (CAS CATO-C4X-222628)
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