1-(5-Methyl-2-thienyl)ethan-1-one 13679-74-8 5-17-09-00425 (Beilstein Handbook Reference) AI3-15900 BRN 0110854 EINECS 237-181-2 Ethanone, 1-(5-methyl-2-thienyl)- Ketone, methyl 5-methyl-2-thienyl Methylthienylcetone [French]