(11b,17b)-17-Hydroxy-11-(4-hydroxyphenyl)-17-(1-propyn-1-yl)-estra-4,9-dien-3-one CAS 88257-21-0
| CAS No. | 88257-21-0 |
| Molecular Formula | C27H30O3 |
| Molecular Weight | 402.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of (11b,17b)-17-Hydroxy-11-(4-hydroxyphenyl)-17-(1-propyn-1-yl)-estra-4,9-dien-3-one 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.
(11b,17b)-17-Hydroxy-11-(4-hydroxyphenyl)-17-(1-propyn-1-yl)-estra-4,9-dien-3-one (CAS 88257-21-0), molecular formula C27H30O3 and molecular weight 402.53 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (11b,17b)-17-Hydroxy-11-(4-hydroxyphenyl)-17-(1-propyn-1-yl)-estra-4,9-dien-3-one (C27H30O3) is characterized by 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).
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 (11b,17b)-17-Hydroxy-11-(4-hydroxyphenyl)-17-(1-propyn-1-yl)-estra-4,9-dien-3-one 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 | C27H30O3 |
| Molecular Weight | 402.53 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
Recommended Standards
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