17beta-Dihydro-17alpha-ethynyl-equillenin CAS 1357266-17-1
| CAS No. | 1357266-17-1 |
| Molecular Formula | C20H20O2 |
| Molecular Weight | 292.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 292.37 g/mol gives 17beta-Dihydro-17alpha-ethynyl-equillenin distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 17beta-Dihydro-17alpha-ethynyl-equillenin (CAS 1357266-17-1), a certified reference material (molecular formula C20H20O2, MW 292.37 g/mol) for analytical method development and quality control.
Based on its molecular formula C20H20O2, 17beta-Dihydro-17alpha-ethynyl-equillenin contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 292.37 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 17beta-Dihydro-17alpha-ethynyl-equillenin 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 | C20H20O2 |
| Molecular Weight | 292.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
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Recommended Standards
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- Donepezil Impurity 56 HCI (CAS 608511-44-0（free base）)
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