ChemicalBook >> CAS DataBase List >>(17α)-13-Ethyl-3-methoxy-18,19-dinorpregna-3,5-dien-20-yn-17-ol
(17α)-13-Ethyl-3-methoxy-18,19-dinorpregna-3,5-dien-20-yn-17-ol
- CAS No.
- 176254-10-7
- Chemical Name:
- (17α)-13-Ethyl-3-methoxy-18,19-dinorpregna-3,5-dien-20-yn-17-ol
- Synonyms
- Levonorgestrel EP IMP S;Levonorgestrel Impurity 3;Levonorgestrel EP impurity S;Levonorgestrel-3-methyldienol ether;Levonorgestrel Impurity 19（Levonorgestrel EP Impurity S）;13-ethyl-3-methoxy-18,19-dinor-17a-pregna-3,5-dien-20-yn-17-ol;(17a)-13-Ethyl-3-Methoxy-18,19-dinorpregna-3,5-dien-20-yn-17-ol;(17α)-13-Ethyl-3-methoxy-18,19-dinorpregna-3,5-dien-20-yn-17-ol;(17Alpha)-13-Ethyl-3-methoxy-18,19-dinorpregna-3,5-dien-20-yn-17-ol;18,19-Dinorpregna-3,5-dien-20-yn-17-ol, 13-ethyl-3-methoxy-, (17α)- (9CI)
- CBNumber:
- CB12508356
- Molecular Formula:
- C22H30O2
- Molecular Weight:
- 326.47
- MDL Number:
- MFCD18803639
- MOL File:
- 176254-10-7.mol
Last updated:2026-07-28 20:32:40
| Product description | Number | Pack Size | Price |
| (17Alpha)-13-Ethyl-3-methoxy-18,19-dinorpregna-3,5-dien-20-yn-17-ol | TRC-E918945-10MG | 10mg | $193 |
| (17Alpha)-13-Ethyl-3-methoxy-18,19-dinorpregna-3,5-dien-20-yn-17-ol | TRC-E918945-100MG | 100mg | $1506 |
| (17a)-13-Ethyl-3-methoxy-18,19-dinorpregna-3,5-dien-20-yn-17-ol | FE23118 | 1mg | $162.25 |
| (17a)-13-Ethyl-3-methoxy-18,19-dinorpregna-3,5-dien-20-yn-17-ol | FE23118 | 2mg | $259.6 |
| (17a)-13-Ethyl-3-methoxy-18,19-dinorpregna-3,5-dien-20-yn-17-ol | FE23118 | 5mg | $389.4 |
| More product size | |||
| Melting point | >110°C (dec.) |
|---|---|
| Boiling point | 473.674±45.00 °C(Press: 760.00 Torr)(predicted) |
| Density | 1.115±0.10 g/cm3(Temp: 25 °C; Press: 760 Torr)(predicted) |
| storage temp. | Hygroscopic, -20°C Freezer, Under inert atmosphere |
| solubility | Chloroform (Slightly), DMSO (Slightly), Methanol (Sparingly, Heated, Sonicated) |
| form | Solid |
| pka | 13.073±0.60(predicted) |
| color | White to Off-White |
| Stability | Hygroscopic, Moisture Sensitive |
| FDA UNII | T4H49UF3PS |
(17α)-13-Ethyl-3-methoxy-18,19-dinorpregna-3,5-dien-20-yn-17-ol price More Price(13)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| TRC | TRC-E918945-10MG | (17Alpha)-13-Ethyl-3-methoxy-18,19-dinorpregna-3,5-dien-20-yn-17-ol | 176254-10-7 | 10mg | $193 | 2026-06-03 | Buy |
| TRC | TRC-E918945-100MG | (17Alpha)-13-Ethyl-3-methoxy-18,19-dinorpregna-3,5-dien-20-yn-17-ol | 176254-10-7 | 100mg | $1506 | 2026-06-03 | Buy |
| Biosynth | FE23118 | (17a)-13-Ethyl-3-methoxy-18,19-dinorpregna-3,5-dien-20-yn-17-ol | 176254-10-7 | 1mg | $162.25 | 2026-06-04 | Buy |
| Biosynth | FE23118 | (17a)-13-Ethyl-3-methoxy-18,19-dinorpregna-3,5-dien-20-yn-17-ol | 176254-10-7 | 2mg | $259.6 | 2026-06-04 | Buy |
| Biosynth | FE23118 | (17a)-13-Ethyl-3-methoxy-18,19-dinorpregna-3,5-dien-20-yn-17-ol | 176254-10-7 | 5mg | $389.4 | 2026-06-04 | Buy |
(17α)-13-Ethyl-3-methoxy-18,19-dinorpregna-3,5-dien-20-yn-17-ol Preparation Products And Raw materials
Raw materials
Preparation Products
Global( 54)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Standardpharm Co. Ltd. | 86-714-3992388 | overseasales1@yongstandards.com | United States | 14320 | 58 |
| CR Corporation Limited | fred.wen@crcorporation.cn | China | 8642 | 58 | |
| Changsha Junyu Chemexpress.co., Ltd | +86-13723890100 | info@csjyyy.cn | China | 134 | 58 |
| Moxin Chemicals | +86-17320513646 +86-17320513646 | anna@molcoo.com | China | 9998 | 58 |
| QUALITY CONTROL SOLUTIONS LTD. | +86-0755-66853366 +8613670046396 | export03@qcsrm.com | China | 24318 | 58 |
| LangFangshi Zekang Pharma Tech CO.,Itd. | 0316-2883536 19333636468 | 93618484@qq.com | China | 2790 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Chemsky (shanghai) International Co.,Ltd | 021-50135380 | shchemsky@sina.com | China | 15350 | 60 |
| BOC Sciences | 1-631-485-4226; 16314854226 | info@bocsci.com | United States | 9920 | 65 |
| Clearsynth Labs Limited | +91-22-26355700 | info@clearsynth.com | India | 9656 | 58 |
176254-10-7((17α)-13-Ethyl-3-methoxy-18,19-dinorpregna-3,5-dien-20-yn-17-ol)Related Search:
13-Ethyl-10,17-dihydroxy-18,19-dinor-17α-pregn-4-en-20-yn-3-one
(9R,10R,13S,17R)-13-ethyl-17-ethynyl-17-hydroxy-1,2,6,7,9,10,11,12,15,16-decahydrocyclopenta[a]phenanthren-3-one
(±)-13-ethyl-3-methoxy-18,19-dinor-17alpha-pregna-2,5(10)-dien-20-yn-17-ol
Levonorgestrel IMpurity N
Levonorgestrel
6α-Hydroxy Norgestrel
Δ5(10),6,8(9)-D-(-)-Norgestrel
Methoxydienone
18-Methyl Nandrolone
13-Ethyl-3-ethynyl-18,19-dinor-17α-pregna-3,5-dien-20-yn-17-ol (Levo Norgestrel Impurity)
1of4
Levonorgestrel-3-methyldienol ether
Levonorgestrel EP impurity S
(17a)-13-Ethyl-3-Methoxy-18,19-dinorpregna-3,5-dien-20-yn-17-ol
(8R,9S,10R,13R,14S,17R)-13-ethyl-17-ethynyl-3-methoxy-2,7,8,9,10,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthren-17-ol
Levonorgestrel Impurity 19（Levonorgestrel EP Impurity S）
Levonorgestrel EP IMP S
18,19-Dinorpregna-3,5-dien-20-yn-17-ol, 13-ethyl-3-methoxy-, (17α)- (9CI)
(8R,9S,10R,13S,14S,17R)-13-ethyl-17-ethynyl-3-methoxy-2,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-ol
13-ethyl-3-methoxy-18,19-dinor-17a-pregna-3,5-dien-20-yn-17-ol
(17Alpha)-13-Ethyl-3-methoxy-18,19-dinorpregna-3,5-dien-20-yn-17-ol
(17α)-13-Ethyl-3-methoxy-18,19-dinorpregna-3,5-dien-20-yn-17-ol
(8R,9S,10R,13S,14S,17R)-13-Ethyl-17-ethynyl-3-methoxy-2,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-ol (Levonorgestrel Impurity)
(17α)-13-Ethyl-3-methoxy-18,19-dinorpregna-3,5-dien-20-yn-17-ol, CAS 176254-10-7
Levonorgestrel Impurity 3
176254-10-7
Impurities
Intermediates & Fine Chemicals
Pharmaceuticals
Steroids
Impurities, Pharmaceuticals, Intermediates & Fine Chemicals, Steroids
