(17α)-17-Hydroxy-3-oxoandrost-4-ene-17-carboxylic acid CAS 633-29-4
| CAS No. | 633-29-4 |
| Molecular Formula | C20H28O4 |
| Molecular Weight | 332.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(17α)-17-Hydroxy-3-oxoandrost-4-ene-17-carboxylic acid (CAS 633-29-4) is a high-purity analytical reference standard with the molecular formula C20H28O4 and a molecular weight of 332.43 g/mol.
Based on its molecular formula C20H28O4, (17α)-17-Hydroxy-3-oxoandrost-4-ene-17-carboxylic acid contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 332.43 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).
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 (17α)-17-Hydroxy-3-oxoandrost-4-ene-17-carboxylic acid 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 | C20H28O4 |
| Molecular Weight | 332.43 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
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