Rosuvastatin Impurity 95 CAS CATO-C4X-116995
| CAS No. | CATO-C4X-116995 |
| Molecular Formula | C13H23ClO4 |
| Molecular Weight | 278.77 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Rosuvastatin Impurity 95 (C13H23ClO4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Rosuvastatin Impurity 95 (CAS CATO-C4X-116995) is a certified pharmaceutical impurity reference standard with the molecular formula C13H23ClO4 and a molecular weight of 278.77 g/mol.
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.
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 | C13H23ClO4 |
| Molecular Weight | 278.77 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| Halogen Content | Cl-containing |
Related Rosuvastatin Standards
- Rosuvastatin Impurity 154 (CAS 154026-94-5)
- Rosuvastatin Impurity 254 (CAS 521974-01-6)
- Rosuvastatin Impurity 86 (CAS 521973-99-9)
- Rosuvastatin Impurity 96 (CAS 521974-00-5)
- Rosuvastatin Impurity 31 (CAS 2095786-11-9)
- Rosuvastatin impurity 245 (CAS 147118-41-0)
- Rosuvastatin Impurity 78 (CAS 488798-37-4)
- Rosuvastatin Impurity 269 (CAS CATO-C4X-1169269)
Recommended Standards
- Venetoclax Impurity 12 (CAS 1228780-49-1)
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- 2-(4-Chlorobenzyl)-2,8-diazaspiro[4.5]decan-3-one (CAS 1258000-09-7)
- Bromhexine Impurity 38 (CAS CATO-C4X-106038)
- Nebivolol Impurity 78 (CAS CATO-C4X-196878)
- Posaconazole impurity 216 (CAS CATO-C4X-1208216)
- (R)-4-chloro-5-fluoro-2,3-dihydro-1H-inden-1-amine (CAS 1213167-89-5)
- 2-(5-Chloro-2-thienyl)-7,8-dimethylquinoline-4-carbonyl chloride (CAS 1160261-41-5)
- 1-Methylisoquinolin-3(2H)-one (CAS 36073-91-3)
- 5-Bromo-6-fluoro-3,3-dimethylindolin-2-one (CAS 1017860-04-6)
- 7-(Difluoromethoxy)quinoline (CAS 1261629-32-6)
- Tert-butyl 4-(5-cyano-2-phenylpyrimidin-4-yl)piperazine-1-carboxylate (CAS 1858252-01-3)
- Semaglutide Impurity 155 (x TFA Salt) (CAS CATO-C4X-2226155)
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