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![](//file1.lookchem.com/300w/substances/2022-03-19-03/b1724e94-285b-4efd-b7d9-bbfa70b91bcd.png)
![](//file1.lookchem.com/300w/synthetic/2022-01-24-09/11fc94c1-203b-4e0a-bff5-2c94a917fb38.png)
- Name:(17α)-Pregn-4-ene-3,20-dione
- Cas:2000-66-0
- Formula:C21H30O2
- Synonyms:Δ4-Pregnendion-(3,20);pregn-4-ene-3,20-dione;3,20-Dioxo-Δ4-pregnen;Δ4-Pregnen-3,20-dion;Progesteron - (3H);Δ4-Pregnendion (Progesteron);
![](//file1.lookchem.com/300w/substances/2022-02-28-07/c70b4c2e-68b4-4b18-abc2-fc1e1aa3019c.png)
![](//file1.lookchem.com/cas/reactions/2021/07/08/3102499.png)
![](//www.lookchem.com/300w/casimage/2011-01-07-02/88255-10-1.gif)
![](//file1.lookchem.com/300w/synthetic/2022-02-13-02/213825a7-062a-4131-9ee5-82358a0a2a35.png)
![](//file1.lookchem.com/300w/substances/2022-03-06-08/0f0f0b03-232e-4d3c-abcc-7c1da0d81742.png)
![](//www.lookchem.com/300w/casimage/2011-02-22-07/93672-25-4.gif)
![](//file1.lookchem.com/300w/substances/2022-02-14-06/5d615385-06b6-48b7-9737-c94651980805.png)
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