19-Norpregn-4-en-20-yn-3-one Price Not Available 25mg 19-Norpregn-4-en-20-yn-3-one Supplier Page Catalog Number R041960 Molecular Formula C20H26O CAS# 38673-42-6 Purity ≥98% Inchi InChI=1S/C20H26O/c1-3-14-5-9-19-18-7-4-13-12-15(21)6-8-16(13)17(18)10-11-20(14,19)2/h1,12,14,16-19H,4-11H2,2H3/t14-,16-,17+,18+,19-,20+/m0/s1 Inchi Key VQYQWMICRCBSID-KUIMHTBBSA-N SMILES CC12CCC3C(C1CCC2C#C)CCC4=CC(=O)CCC34 Size 25mg Supplier Page https://www.musechem.com/product/R041960.html