Rosuvastatin Impurity 65 CAS 885477-83-8
| CAS No. | 885477-83-8 |
| Molecular Formula | C34H34FN3O2PS |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Rosuvastatin Impurity 65 (CAS 885477-83-8), a pharmacopoeial impurity reference standard (molecular formula C34H34FN3O2PSBr, MW 678.60 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, organophosphorus functionality, a hydroxyl group, an ether linkage, fluorine/bromine substitution, Rosuvastatin Impurity 65 is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 678.60 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 65 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 | C34H34FN3O2PS Br |
| Molecular Weight | 678.60 g/mol |
| Purity | >95% |
| 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) | 18.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Rosuvastatin Standards
- Rosuvastatin Impurity 205 (CAS 1007871-85-3)
- Rosuvastatin EP Impurity L Calcium(Mixture of Diastereomers) (CAS 1024064-70-7)
- Rosuvastatin Impurity 267 (CAS 1031246-43-1)
- Rosuvastatin Impurity 19 (CAS 1035595-71-1)
- Rosuvastatin Impurity 27 (CAS 1044518-75-3)
- Rosuvastatin Impurity 192 (CAS 1092844-00-2)
- Rosuvastatin Impurity 123 (CAS 1112048-62-0)
- Rosuvastatin Impurity 37 (CAS 1197348-98-3)
Recommended Standards
- Baloxavir lmpurity 59 (CAS CATO-C4X-210859)
- Gadobutrol EP Impurity A 4HCl (Mixture of Diastereomers) (CAS 2514736-59-3)
- Fudosteine Impurity 15 HCl (CAS CATO-C4X-144715)
- 3,4-dihydro-1H-2$l^{6},3-benzothiazine-2,2,4-trione (CAS 21784-53-2)
- Ethyl (6-methoxy-4-phenylquinoline-2-carbonyl)glycinate (CAS 1451566-78-1)
- Telmisartan Impurity 9 (CAS 884330-14-7)
- [2-chloro-6-(4-methylpiperazin-1-yl)phenyl]methanamine (CAS 1037161-38-8)
- 8-Bromo-6-fluoroisoquinolin-3-amine (CAS 1363405-22-4)
- (R)-N-(3,4-Dimethoxyphenethyl)-2-phenylpropan-1-amine (CAS 522646-18-0)
- Neuropeptide Y, human (CAS 98264-90-5)
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