2-Methyl Ethynyl Estradiol (CAS 3240-39-9) — formula C21H26O2, molecular weight 310.4; category organic chemicals.
2-Methyl Ethynyl Estradiol (CAS 3240-39-9) is a chemical raw material in the organic chemicals category. Its molecular formula C21H26O2 comprises 21 C, 26 H, 2 O atoms. Its molecular weight is about 310.4. Reported physicochemical data: LogP about 4. 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 | 3240-39-9 |
|---|---|
| Molecular Formula | C21H26O2 |
| Molecular Weight | 310.4 |
| LogP | 4 |
| Category | Organic Chemicals |
2-Methyl Ethynyl Estradiol is a carbon-based organic compound with CAS registry number 3240-39-9 and molecular formula C21H26O2 (molecular weight 310.4), belonging to the organic chemicals segment of chemical raw materials.
CAS number: 3240-39-9
Its molecular formula C21H26O2 comprises 21 C, 26 H, 2 O atoms.
Also known as: 2-Methyl Ethynyl Estradiol · 炔雌醇EP杂质M
Category: organic chemicals
The CAS registry number of 2-Methyl Ethynyl Estradiol is 3240-39-9.
Molecular formula C21H26O2, molecular weight 310.4.
It is also registered under: 2-Methyl Ethynyl Estradiol, 炔雌醇EP杂质M.
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 2-Methyl Ethynyl Estradiol (CAS 3240-39-9), compiled from public chemistry databases.
| CAS Number | 3240-39-9 |
|---|---|
| PubChem CID | 13991395 |
| Molecular Formula | C21H26O2 |
| IUPAC Name | (8R,9S,13S,14S,17R)-17-ethynyl-2,13-dimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-diol |
| UNII (FDA) | YD0T6YEK7D |
| Molecular Weight | 310.4 |
|---|---|
| XLogP3 | 4 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 1 |
| Exact Mass | 310.193280068 |
| Monoisotopic Mass | 310.193280068 |
| Topological Polar Surface Area | 40.5 |
| Heavy Atom Count | 23 |
3240-39-9; 2-Methyl-ethinylestradiol; 2-Methyl Ethynyl Estradiol; Ethinylestradiol EP Impurity M; 2-Methyl-ethinyl estradiol; Ethinyl Estradiol Impurity M; YD0T6YEK7D; NIOSH/RC8945100; RC89451000; 17-alpha-Ethinyl-2-methyl-8-alpha-estradiol; 17-alpha-Ethinyl-2-methyl-8-alpha-E(sub 2); 17-alpha-Ethinyl-2-methyl-8-alpha-estra-1,3,5(10)-triene-3,17-beta-diol; 19-Nor-8-alpha,17-alpha-pregna-1,3,5(10)-trien-20-yne-3,17-diol, 2-methyl-; 2-Methyl-19-nor-8-alpha,17-alpha-pregna-1,3,5(10)-trien-20-yne-3,17-diol; UNII-YD0T6YEK7D; 2-Methyl Ethinyl Estradiol
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 炔雌醇EP杂质M