3Alpha,7Alpha-Dihydroxycoprostanic Acid-d3 CAS 338976-76-4
| CAS No. | 338976-76-4 |
| Molecular Formula | - |
| Molecular Weight | 437.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 3Alpha,7Alpha-Dihydroxycoprostanic Acid-d3 (C27H43D3O4) is characterized by deuterium isotope labeling, a steroid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
3Alpha,7Alpha-Dihydroxycoprostanic Acid-d3 (CAS 338976-76-4), molecular formula C27H43D3O4 and molecular weight 437.67 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.
As a certified reference material (CRM), 3Alpha,7Alpha-Dihydroxycoprostanic Acid-d3 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 | C27H43D3O4 |
| Molecular Weight | 437.67 g/mol |
| Appearance | Off-white to pale 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) | 6.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
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