(E)-3-O-Methyl Entacapone Price Not Available 1mg (E)-3-O-Methyl Entacapone Supplier Page Catalog Number R049738 Molecular Formula C15H17N3O5 CAS# 857629-78-8 Purity ≥95% Inchi InChI=1S/C15H17N3O5/c1-4-17(5-2)15(20)11(9-16)6-10-7-12(18(21)22)14(19)13(8-10)23-3/h6-8,19H,4-5H2,1-3H3/b11-6+ Inchi Key MAZRYCCTAIVEQP-IZZDOVSWSA-N SMILES CCN(CC)C(=O)C(=CC1=CC(=C(C(=C1)OC)O)[N+](=O)[O-])C#N Size 1mg Supplier Page https://www.musechem.com/product/R049738.html