Cholesterol Impurity 38 CAS 41461-10-3
| CAS No. | 41461-10-3 |
| Molecular Formula | C31H48O4 |
| Molecular Weight | 484.71 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Cholesterol Impurity 38 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.
Cholesterol Impurity 38 (CAS 41461-10-3) is a certified pharmaceutical impurity reference standard with the molecular formula C31H48O4 and a molecular weight of 484.71 g/mol.
Based on its molecular formula C31H48O4, Cholesterol Impurity 38 contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 484.71 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C31H48O4 |
| Molecular Weight | 484.71 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | ≥95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
Related Cholesterol Standards
- Cholesterol hexanoate (CAS 1062-96-0)
- Cholesterol hemisuccinate (CAS 1510-21-0)
- Cholesterol butyl carbonate (CAS 41371-14-6)
- Cholesterol Isobutyl Carbonate (CAS 77546-35-1)
- Cholesterol Isopropyl Carbonate (CAS 78916-25-3)
- Cholesterol Amyl Carbonate (CAS 15455-79-5)
- Cholesterol Impurity 18 (CAS 54378-86-8)
- Cholesterol ethyl carbonate (CAS 23836-43-3)
Recommended Standards
- 5092-01-3 18-alpha-Olean-12-en-30-oic acid, 3-beta-hydroxy-11-oxo-, methyl ester Methyl 18-alpha-glycyrrhetate Methyl beta-glycyrrhetinate (CAS 5092-01-3)
- Phytomenadione Impurity 28 (CAS 107759-10-4)
- Testosterone Ketolaurate (CAS 5874-98-6)
- Phytomenadione/Vitamin K1 Impurity 85 (CAS CATO-C4X-220785)
- Atosiban Impurity 2 (CAS CATO-C4X-22932)
- Atorvastatin impurity 159 (CAS 163217-75-2)
- Ceftazidime Impurity 81 (CAS CATO-C4X-121281)
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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