Ethinylestradiol-d9 CAS CATO-C4X-21909
| CAS No. | CATO-C4X-21909 |
| Molecular Formula | - |
| Molecular Weight | 305.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 305.46 g/mol gives Ethinylestradiol-d9 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Ethinylestradiol-d9 (CAS CATO-C4X-21909) is a high-purity analytical reference standard with the molecular formula C20H15D9O2 and a molecular weight of 305.46 g/mol.
Owing to deuterium isotope labeling, a steroid core, a hydroxyl group, an ether linkage, Ethinylestradiol-d9 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 305.46 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 Ethinylestradiol-d9 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 | C20H15D9O2 |
| Molecular Weight | 305.46 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) | 13.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Ethinylestradiol Standards
- Ethinylestradiol-d7 (CAS 2714413-57-5)
- Ethinylestradiol EP Impurity G (CAS 38002-18-5)
- Ethinylestradiol EP Impurity H (CAS 1350468-76-6)
- Ethinylestradiol 1-Hydroxy 4-Methyl Impurity (CAS 1034298-00-4)
- Ethinylestradiol EP Impurity J (CAS 15071-66-6)
- Ethinylestradiol EP Impurity K (CAS 155683-61-7)
- Ethinylestradiol EP Impurity M (CAS 3240-39-9)
- Ethinylestradiol EP Impurity F (CAS 56324-28-8)
Recommended Standards
- Terbinafine EP Impurity D (CAS 151222-50-3)
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- all-trans-Retinoic Acid-d5 (major) (CAS 78996-15-3)
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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