Rosuvastatin Impurity 166 CAS CATO-C4X-1169166
| CAS No. | CATO-C4X-1169166 |
| Molecular Formula | C17H20FN3O2S |
| Molecular Weight | 349.42 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.
Rosuvastatin Impurity 166 (CAS CATO-C4X-1169166) is a certified pharmaceutical impurity reference standard with the molecular formula C17H20FN3O2S and a molecular weight of 349.42 g/mol.
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution, Rosuvastatin Impurity 166 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 349.42 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Rosuvastatin Impurity 166 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 | C17H20FN3O2S |
| Molecular Weight | 349.42 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Rosuvastatin Standards
- Rosuvastatin Impurity 138 (CAS CATO-C4X-1169138)
- Rosuvastatin Impurity 242 (CAS CATO-C4X-1169242)
- Rosuvastatin Impurity 192 (CAS 1092844-00-2)
- Rosuvastatin Impurity 106 (CAS 147118-37-4)
- Rosuvastatin Impurity 227 (CAS CATO-C4X-1169227)
- Rosuvastatin Impurity 230 (CAS CATO-C4X-1169230)
- Rosuvastatin Impurity 139 (CAS CATO-C4X-1169139)
- Rosuvastatin Impurity 153 (CAS CATO-C4X-1169153)
Recommended Standards
- Bendamustine USP Related Compound C (CAS 3543-74-6)
- Prasugrel Impurity 21 (CAS 204204-73-9)
- Avibactam Impurity 139 (CAS CATO-C4X-1348139)
- Vonoprazan Impurity 109 (CAS CATO-C4X-1020109)
- Bupropion Impurity 31 (CAS CATO-C4X-120331)
- Upadacitinib Impurity 84 2HCl (CAS CATO-C4X-240584)
- Aminomethylbenzoic Acid Impurity 8 (CAS 1306130-66-4)
- 2-Chloro-4-hydroxypyridine (CAS 17368-12-6)
- 3,3,3-Trifluoro-2-(pyridin-4-yloxy)propan-1-amine (CAS 886764-54-1)
- Methyl 4-(1-((tert-butoxycarbonyl)amino)-2-hydroxyethyl)benzoate (CAS 156143-81-6)
- 2-(6-Chloro-2-(chloromethyl)-5-(difluoromethyl)pyridin-3-yl)acetonitrile (CAS 1804376-93-9)
- 3-(Quinoxalin-6-yl)propan-1-ol (CAS 545422-18-2)
- N-(4-methylbenzyl)-1-(4-(methylthio)phenyl)methanamine (CAS 892594-62-6)
- Liraglutide Impurity 30 (CAS CATO-C4X-199230)
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