17alpha-Ethynylestradiol-2,4,16,16-d4 CAS 350820-06-3
| CAS No. | 350820-06-3 |
| Molecular Formula | - |
| Molecular Weight | 300.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to deuterium isotope labeling, a steroid core, a hydroxyl group, an ether linkage, 17alpha-Ethynylestradiol-2,4,16,16-d4 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 300.43 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).
17alpha-Ethynylestradiol-2,4,16,16-d4 (CAS 350820-06-3) is a high-purity analytical reference standard with the molecular formula C20H20D4O2 and a molecular weight of 300.43 g/mol.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 17alpha-Ethynylestradiol-2,4,16,16-d4 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 | C20H20D4O2 |
| Molecular Weight | 300.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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.) | 2025 |
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Why CATO?
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