Rosuvastatin Impurity 137 CAS 325471-28-1
| CAS No. | 325471-28-1 |
| Molecular Formula | C10H19ClO4 |
| Molecular Weight | 238.71 g/mol |
| 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.
As a process- or degradation-related impurity, Rosuvastatin Impurity 137 (CAS 325471-28-1, C10H19ClO4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C10H19ClO4, Rosuvastatin Impurity 137 contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 238.71 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO manufactures Rosuvastatin Impurity 137 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.
Physical & Chemical Properties
| Molecular Formula | C10H19ClO4 |
| Molecular Weight | 238.71 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
Related Rosuvastatin Standards
- Rosuvastatin Impurity 111 (CAS 404958-68-5)
- Rosuvastatin Impurity 169 (CAS 404958-69-6)
- Rosuvastatin Impurity 187 (CAS 154026-93-4)
- Rosuvastatin Impurity 59 (CAS 404958-08-3)
- Rosuvastatin Impurity 140 (CAS 154026-92-3)
- Rosuvastatin Impurity 107 (CAS 122549-26-2)
- Rosuvastatin Impurity 266 (CAS 775571-58-9)
- Rosuvastatin Impurity 87 (CAS CATO-C4X-116987)
Recommended Standards
- 401495-67-8 Benzoyl chloride, 4-(4-methyl-1-piperazinyl)- (CAS 401495-67-8)
- rac-(1R,2R)-2-(3-chlorophenyl)cyclohexane-1-carboxylic acid (CAS 2059908-45-9)
- Domperidone Impurity 35 (CAS CATO-C4X-142035)
- n-{1-[(4-chlorophenyl)methyl]piperidin-4-ylidene}hydroxylamine (CAS 68726-76-1)
- Alectinib Impurity 76 (CAS CATO-C4X-283676)
- Brexpiprazole Impurity 4 (CAS 70500-72-0)
- Formoterol Impurity 72 (CAS 108971-53-5)
- Azeto[1,2-c]pyrrolo[1,2-a]imidazole (CAS 131238-20-5)
- *MDPV Impurity 2 (CAS 2117405-33-9)
- Tert-butyl 7-(methylamino)-5-oxa-2-azaspiro[3.4]Octane-2-carboxylate (CAS 2000257-06-5)
- 3-(1-Boc-4-piperidyl)-1-propanol (CAS 156185-63-6)
- 4-(3-nitrophenyl)benzonitrile (CAS 39117-72-1)
- N-(4-chlorophenyl)-2-(4-(2-fluorophenyl)piperazin-1-yl)nicotinamide (CAS 339011-43-7)
- D-Val23-Tirzepatide (CAS CATO-CPTD788911)
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