Rosuvastatin Impurity 205 CAS 1007871-85-3
| CAS No. | 1007871-85-3 |
| Molecular Formula | C29H40FN3O6S |
| Molecular Weight | 577.71 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 577.71 g/mol gives Rosuvastatin Impurity 205 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Rosuvastatin Impurity 205 (CAS 1007871-85-3, C29H40FN3O6S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution, Rosuvastatin Impurity 205 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 577.71 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).
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.
As a certified reference material (CRM), Rosuvastatin Impurity 205 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 | C29H40FN3O6S |
| Molecular Weight | 577.71 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Rosuvastatin Standards
- Rosuvastatin Impurity 119 (CAS CATO-C4X-1169119)
- Rosuvastatin Impurity 120 (CAS CATO-C4X-1169120)
- Rosuvastatin Impurity 231 (CAS CATO-C4X-1169231)
- Rosuvastatin Impurity 43 (CAS 1378943-63-5)
- Rosuvastatin Impurity 44 (CAS 2758676-77-4)
- Rosuvastatin Impurity 45 (CAS 1821422-50-7)
- Rosuvastatin Impurity 47 (CAS CATO-C4X-116947)
- Rosuvastatin EP Impurity F (CAS 289042-12-2)
Recommended Standards
- Dihydro-a-Ergocryptine (CAS 25447-66-9)
- aplaviroc (CAS 461443-59-4)
- 9,10-Dihydro-β-ergocryptine (CAS 19467-62-0)
- Glucopiericidin A (CAS 108073-65-0)
- Relugolix Impurity 205 (CAS CATO-C4X-2429205)
- Eltrombopag Impurity 120 (CAS CATO-C4X-1198120)
- Tegoprazan Impurity 72 (CAS CATO-C4X-229772)
- 5-amino-2-chloro-4-methylbenzoic acid (CAS 1379183-04-6)
- 3-(2,2,2-Trifluoroethyl)aniline (CAS 768335-16-6)
- 6-Methoxy-2,3-dihydro-1H-pyrrolo[1,2-a]indol-1-one (CAS 137075-36-6)
- 4-Iodo-N-(pyridin-2-yl)benzamide (CAS 300401-95-0)
- 1-Methyl-7-(pyrimidin-5-yl)-1,7-diazaspiro[4.4]nonane (CAS 646056-23-7)
- 4-Bromo-N-(pyridin-4-ylmethyl)aniline (CAS 166110-81-2)
- Tirzepatide Impurity 19 X TFA Salt (CAS CATO-C4X-324019)
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