Ethynodiol Diacetate CAS 297-76-7
| CAS No. | 297-76-7 |
| Molecular Formula | C24H32O4 |
| Molecular Weight | 384.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ethynodiol Diacetate.
Ethynodiol Diacetate (CAS 297-76-7) is a high-purity analytical reference standard with the molecular formula C24H32O4 and a molecular weight of 384.51 g/mol.
The molecular framework of Ethynodiol Diacetate (C24H32O4) is characterized by a flavonoid 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 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.
As a certified reference material (CRM), Ethynodiol Diacetate 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 | C24H32O4 |
| Molecular Weight | 384.51 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Ethynodiol Standards
Recommended Standards
- Megestrol-17-Acetate (CAS 595-33-5)
- Megestrol acetate (CAS 51154-23-5)
- 17-Beta-Estradiol 3,17-Dipropionate (CAS 113-38-2)
- Acequinocyl (CAS 57960-19-7)
- 2-Bromoethyl 4-bromobenzoate (CAS 850473-96-0)
- 2-(4-(4-Methoxy-2-methylphenyl)-2-methylthiazol-5-yl)acetic acid (CAS 1416347-91-5)
- (r)-1-(4-Methoxybenzyl)pyrrolidin-3-amine dihydrochloride (CAS 876159-31-8)
- N-((S)-1-(4-Bromo-2-methoxyphenyl)ethyl)-2-methylpropane-2-sulfinamide (CAS 2378054-20-5)
- Dimethyl 6,6'-bis(bromomethyl)-[2,2'-bipyridine]-4,4'-dicarboxylate (CAS 117330-41-3)
- 2-Benzyl-5-(trifluoromethyl)-1,2-dihydro-3H-pyrazol-3-one (CAS 143706-79-0)
- n-(Cyclopropylmethyl)-4-phenylbutan-2-amine (CAS 1019611-77-8)
- Vemurafenib (CAS 918504-65-1)
- 1-(4-chloro-2-fluorophenyl)prop-2-yn-1-amine hydrochloride (CAS 1803611-88-2)
- Semaglutide Impurity 133 (CAS CATO-C4X-2226133)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com