Rosuvastatin Impurity 71 CAS CATO-C4X-116971
| CAS No. | CATO-C4X-116971 |
| Molecular Formula | C12H20O6 |
| Molecular Weight | 260.28 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Rosuvastatin Impurity 71 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.
As a process- or degradation-related impurity, Rosuvastatin Impurity 71 (CAS CATO-C4X-116971, C12H20O6) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Rosuvastatin Impurity 71 (C12H20O6) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C12H20O6 |
| Molecular Weight | 260.28 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
Related Rosuvastatin Standards
- Rosuvastatin Impurity 146 (CAS 148809-28-3)
- Rosuvastatin Impurity 64 (CAS 124655-09-0)
- Rosuvastatin Impurity 74 (CAS 407577-54-2)
- Rosuvastatin Impurity 75 (CAS CATO-C4X-116975)
- Rosuvastatin Impurity 27 (CAS 1044518-75-3)
- Rosuvastatin Impurity 29 (CAS CATO-C4X-116929)
- Rosuvastatin Impurity 30 (CAS CATO-C4X-116930)
- Rosuvastatin Impurity 61 (CAS 124752-23-4)
Recommended Standards
- 5870-38-2 Diethyl 2,5-dihydroxyterephthalate 1,4-Benzenedicarboxylic acid, 2,5-dihydroxy-, 1,4-diethyl ester 1,4-Benzenedicarboxylic acid, 2,5-dihydroxy-, diethyl ester 2,5-Dihydroxyterephthalic acid diethyl ester EINECS 227-522-3 NSC 177975 Terephthalic acid, 2,5-dihydroxy-, diethyl ester (CAS 5870-38-2)
- Topiramate Impurity 24 (CAS 582-52-5)
- Triethyl propane-1,1,2-tricarboxylate (CAS 6945-45-5)
- Topiramate Impurity 25 (CAS 25018-67-1)
- Clemastine Impurity 6 Fumarate (S,S-isomer) (CAS 61826-29-7)
- Salicylic Acid Impurity 20 (CAS CATO-C4X-190220)
- Lenalidomide Impurity 43 (CAS 1061604-41-8)
- Methyl 4-(((4-amino-6-oxo-1,6-dihydropyrimidin-2-yl)thio)methyl)benzoate (CAS 500202-76-6)
- [(6-Phenylpyrimidin-4-yl)thio]acetic acid (CAS 927998-57-0)
- 2-Bromo-6-(chloromethyl)-3-(difluoromethyl)isonicotinaldehyde (CAS 1804429-45-5)
- {4-[(propan-2-yloxy)methyl]phenyl}methanamine (CAS 1016496-79-9)
- (S)-3-amino-4-(2-chlorophenyl)butanoic acid hydrochloride (CAS 331763-52-1)
- 3-(6-(5-(1-Cyclopentyl-1H-pyrazol-4-yl)-1H-pyrrolo[2,3-b]pyridin-3-yl)pyridin-2-yl)pentanenitrile (CAS 1956379-63-7)
- Peptide Impurity 26 (CAS 1350456-66-4)
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