aaa (24R)-4a-Methyl-24-ethylcholestane CAS 53596-90-0
| CAS No. | 53596-90-0 |
| Molecular Formula | C30H54 |
| Molecular Weight | 414.75 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
aaa (24R)-4a-Methyl-24-ethylcholestane (C30H54) contains an aromatic ring system. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
aaa (24R)-4a-Methyl-24-ethylcholestane (CAS 53596-90-0), molecular formula C30H54 and molecular weight 414.75 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures aaa (24R)-4a-Methyl-24-ethylcholestane 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 | C30H54 |
| Molecular Weight | 414.75 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
Recommended Standards
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- 6,7-Dimethoxy-2-methyl-1-(2,3,4-trichlorophenethyl)-1,2,3,4-tetrahydroisoquinoline (CAS 63937-61-1)
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- tert-Butyl((R)-1-((R)-3-chloro-4,5-dihydroisoxazol-5-yl)-2-hydroxyethyl)carbamate (CAS 1329611-55-3)
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Why CATO?
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