3α,7α-Dihydroxycoprostanic Acid CAS 17974-66-2
| CAS No. | 17974-66-2 |
| Molecular Formula | C27H46O4 |
| Molecular Weight | 434.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3α,7α-Dihydroxycoprostanic Acid is closely related to a steroid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3α,7α-Dihydroxycoprostanic Acid (CAS 17974-66-2), molecular formula C27H46O4 and molecular weight 434.65 g/mol, is a CATO reference standard with documented purity and traceability.
3α,7α-Dihydroxycoprostanic Acid (C27H46O4) contains a steroid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3α,7α-Dihydroxycoprostanic Acid 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 | C27H46O4 |
| Molecular Weight | 434.65 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
Recommended Standards
- (3R,5S,6R,7R,8S,9S,10S,13R,14S,17R)-6-Ethyl-7-hydroxy-17-((R)-4-hydroxybutan-2-yl)-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-3-yl acetate (CAS 1605309-13-4)
- (25R)-3α,7α-dihydroxy-5 β-cholestan-26-oic acid (CAS 23740-16-1)
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