4-Methyl Ethynyl Estradiol Price Not Available 25mg 4-Methyl Ethynyl Estradiol Supplier Page Catalog Number R053275 Molecular Formula C21H26O2 CAS# 155683-61-7 Purity ≥95% Inchi InChI=1S/C21H26O2/c1-4-21(23)12-10-18-17-6-5-14-13(2)19(22)8-7-15(14)16(17)9-11-20(18,21)3/h1,7-8,16-18,22-23H,5-6,9-12H2,2-3H3/t16-,17-,18+,20+,21+/m1/s1 Inchi Key GJUXDWYIPYRJJU-SACAXFFCSA-N SMILES CC1=C(C=CC2=C1CCC3C2CCC4(C3CCC4(C#C)O)C)O Size 25mg Supplier Page https://www.musechem.com/product/R053275.html