Rosuvastatin Impurity 55 CAS 289042-10-0
| CAS No. | 289042-10-0 |
| Molecular Formula | C28H29FN3O3PS |
| Molecular Weight | 537.59 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 55 (CAS 289042-10-0) is a certified pharmaceutical impurity reference standard with the molecular formula C28H29FN3O3PS and a molecular weight of 537.59 g/mol.
Owing to a steroid core, an amide group, a sulfone group, a phosphonate group, a hydroxyl group, an ether linkage, fluorine substitution, Rosuvastatin Impurity 55 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 537.59 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).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C28H29FN3O3PS |
| Molecular Weight | 537.59 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) | 15.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Rosuvastatin Standards
- Rosuvastatin Impurity 184 (CAS CATO-C4X-1169184)
- Rosuvastatin Impurity 124 (CAS 615263-60-0)
- Rosuvastatin Impurity 125 (CAS CATO-C4X-1169125)
- Rosuvastatin Impurity 126 (CAS CATO-C4X-1169126)
- Rosuvastatin Impurity 214 (CAS CATO-C4X-1169214)
- Rosuvastatin Impurity 22 (CAS 355806-00-7)
- Rosuvastatin Impurity 232 (CAS CATO-C4X-1169232)
- Rosuvastatin Impurity 257 (CAS CATO-C4X-1169257)
Recommended Standards
- Cefminox Sodium Impurity 10 (CAS CATO-C4X-192610)
- 5-((5-(2,8-Dimethyl-5H-dibenzo[a,d][7]annulen-5-yl)-2-oxo-4-thioxo-3,4-dihydropyrimidin-1(2H)-yl)methyl)-N-(1H-tetrazol-5-yl)furan-2-carboxamide (CAS 216657-60-2)
- (3E,5E)-3,5-Bis({4-[(4-fluorophenyl)methoxy]phenyl}methylidene)-1-methylpiperidin-4-one (CAS 882083-27-4)
- (S)-Allylphos (CAS 2375836-77-2)
- Sulfadoxine Impurity 2 (CAS 5018-38-2)
- Ixazomib Impurity 54 (CAS CATO-C4X-126754)
- Topiramate Impurity 14 (CAS 4136-95-2)
- 4-(3-methoxyphenyl)-4-oxo-3-phenylbutanenitrile (CAS 1443979-26-7)
- Methyl 3-[(2,2-dimethoxyethyl)amino]-2-methylpropanoate (CAS 1221346-16-2)
- 1,2,3,4-tetrahydro-1,4-methanonaphthalene-2,3-diol (CAS 230615-47-1)
- Elagolix Impurity 38 (CAS 999-10-0)
- 2-Phenethylmagnesium bromide - (CAS 3277-89-2)
- 1-(3-Fluorobenzyl)-5-methyl-1H-1,2,3-triazole-4-carboxylic acid (CAS 1150703-55-1)
- Semaglutide impound 212 (CAS CATO-C4X-2226212)
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