17a-Ethynylestriol (CAS 4717-40-2) — formula C20H24O3, molecular weight 312.4; category organic chemicals.
17a-Ethynylestriol (CAS 4717-40-2) is a chemical raw material in the organic chemicals category. Its molecular formula C20H24O3 comprises 20 C, 24 H, 3 O atoms. Its molecular weight is about 312.4. Reported physicochemical data: LogP about 2.7. As a sourcing and distribution partner we help locate and compare this item across domestic and cross-border channels, arranging samples and batch orders with full COA and compliance files.
| CAS Number | 4717-40-2 |
|---|---|
| Molecular Formula | C20H24O3 |
| Molecular Weight | 312.4 |
| LogP | 2.7 |
| Category | Organic Chemicals |
17a-Ethynylestriol is a carbon-based organic compound with CAS registry number 4717-40-2 and molecular formula C20H24O3 (molecular weight 312.4), belonging to the organic chemicals segment of chemical raw materials.
CAS number: 4717-40-2
Its molecular formula C20H24O3 comprises 20 C, 24 H, 3 O atoms.
Also known as: 17a-Ethynylestriol · 17-乙炔基雌三醇
Category: organic chemicals
The CAS registry number of 17a-Ethynylestriol is 4717-40-2.
Molecular formula C20H24O3, molecular weight 312.4.
It is also registered under: 17a-Ethynylestriol, 17-乙炔基雌三醇.
Category: Organic Chemicals.
Packaging is agreed per order, from lab-scale packs to bulk, and confirmed with each order rather than fixed on the page. A Certificate of Analysis (COA) ships with every batch and MSDS is available; where the end use carries a regulatory limit (food contact, pharmaceutical or cosmetic), state the standard at enquiry and the grade is set against it.
Independent reference data for 17a-Ethynylestriol (CAS 4717-40-2), compiled from public chemistry databases.
| CAS Number | 4717-40-2 |
|---|---|
| PubChem CID | 11723045 |
| Molecular Formula | C20H24O3 |
| IUPAC Name | (8R,9S,13S,14S,16R,17R)-17-ethynyl-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,16,17-triol |
| UNII (FDA) | PVH6K749AL |
| Molecular Weight | 312.4 |
|---|---|
| XLogP3 | 2.7 |
| Hydrogen Bond Donor Count | 3 |
| Hydrogen Bond Acceptor Count | 3 |
| Rotatable Bond Count | 1 |
| Exact Mass | 312.17254462 |
| Monoisotopic Mass | 312.17254462 |
| Topological Polar Surface Area | 60.7 |
| Heavy Atom Count | 23 |
17-Ethynylestriol; 4717-40-2; Ethinylestriol; Estriol, 17-ethynyl-; PVH6K749AL; (16alpha,17alpha)-19-Norpregna-1,3,5(10)-trien-20-yne-3,16,17-triol; 19-Nor-17alpha-pregna-1,3,5(10)-trien-20-yne-3,16alpha,17-triol; (16.ALPHA.,17.ALPHA.)-19-NORPREGNA-1,3,5(10)-TRIEN-20-YNE-3,16,17-TRIOL; 19-NOR-17.ALPHA.-PREGNA-1,3,5(10)-TRIEN-20-YNE-3,16.ALPHA.,17-TRIOL; RefChem:138405; UNII-PVH6K749AL; 17-alpha-Ethynylestriol; Nilestriol Impurity 10; SCHEMBL6387248; CHEMBL1627607
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 17-乙炔基雌三醇