Rosuvastatin Impurity 91 CAS CATO-C4X-116991
| CAS No. | CATO-C4X-116991 |
| Molecular Formula | C45H56F2N6O8S2 |
| Molecular Weight | 911.09 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Rosuvastatin Impurity 91 (C45H56F2N6O8S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Rosuvastatin Impurity 91 (CAS CATO-C4X-116991), a pharmacopoeial impurity reference standard (molecular formula C45H56F2N6O8S2, MW 911.09 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
CATO manufactures Rosuvastatin Impurity 91 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C45H56F2N6O8S2 |
| Molecular Weight | 911.09 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) | 20.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 2 |
Related Rosuvastatin Standards
- Rosuvastatin Impurity 141 (CAS CATO-C4X-1169141)
- Rosuvastatin Impurity 164 (CAS CATO-C4X-1169164)
- Rosuvastatin Impurity 209 (CAS CATO-C4X-1169209)
- Rosuvastatin Impurity 210 (CAS CATO-C4X-1169210)
- Rosuvastatin Impurity 92 (CAS CATO-C4X-116992)
- Rosuvastatin Impurity 161 (CAS CATO-C4X-1169161)
- Rosuvastatin Impurity 262 (CAS CATO-C4X-1169262)
- Rosuvastatin Impurity 105 (CAS CATO-C4X-1169105)
Recommended Standards
- 1229626-28-1 5ZT4SBY0BD Neceprevir [USAN] Deldeprevir [USAN:INN] Cyclopropa(e)pyrrolo(1,2-a)(1,4)diazacyclopentadecine-14a(5H)-carboxamide, N- (cyclopropylsulfonyl)-6-(2-(3,3-difluoro-1-piperidinyl)-2-oxoethyl)- 1,2,3,6,7,8,9,10,11,13a,14,15,16,16a-tetradecahydro-2-((7-methoxy-8-methyl-2-(4-(1- methylethyl)-2-thiazolyl)-4-quinolinyl)oxy)-5,16-dioxo-, (2R,6R,12Z,13aS,14aR,16aS)- (2R,6R,12Z,13aS,14aR,16aS)-N-(cyclopropylsulfonyl)-6-(2-(3,3-difluoropiperidin-1-yl)- 2-oxoethyl)-2-({7-methoxy-8-methyl-2-(4-(1-methylethyl)thiazol-2-yl)quinolin-4-yl}oxy)- 5,16-dioxo-1,2,3,6,7,8,9,10,11,13a,14,15,16,16a- tetradecahydrocyclopropa(e)pyrrolo(1,2-a)(1,4)diazacyclopentadecine-14a(5H)- carboxamide Neceprevir UNII-5ZT4SBY0BD Deldeprevir (CAS 1229626-28-1)
- MC-MMAE (CAS 863971-24-8)
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- TQS, >98% (HPLC) (CAS 353483-92-8)
- 3-(1-Methyl-1H-imidazol-2-yl)-2,4,5,5a,6,7,8,8a-octahydro-pyrrolo[3,4-g]indazole trihydrochloride (CAS 1361113-77-0)
- 2-{4-[2-(Benzenesulfonyl)-1-phenylethyl]piperazin-1-yl}acetic acid (CAS 1253527-71-7)
- 7-Fluoro-2,3-dihydro-1H-inden-4-ol (CAS 161178-24-1)
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- 1-(2-(Isopropylsulfonyl)-1,2,3,4-tetrahydroisoquinolin-5-yl)-5-methyl-1h-1,2,3-triazole-4-carboxylic acid (CAS 1334147-96-4)
- Neuropeptide Y (13-36) (porcine) (CAS 113662-54-7)
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