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| Synonyms | 19-nor-17-alpha-pregn-4-en-20-yn-17-beta-ol | 
| Smile Code | C#C[C@@]1(O)[C@]2(C)[C@@H](CC1)[C@H]3[C@H](CC2)[C@@H]4C(=CCCC4)CC3 | 
| InChI | InChI=1S/C20H28O/c1-3-20(21)13-11-18-17-9-8-14-6-4-5-7-15(14)16(17)10-12-19(18,20)2/h1,6,15-18,21H,4-5,7-13H2,2H3/t15-,16+,17+,18-,19-,20-/m0/s1 | 
| EINECS | 200-151-4 | 
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