Synonyms: Pyrimidine,1,4,5,6-tetrahydro-1-methyl-2-[2-(3-methyl-2-thienyl)ethenyl]-, (E)-;Pyrimidine, 1,4,5,6-tetrahydro-1-methyl-2-[2-(3-methyl-2-thienyl)vinyl]-, (E)-(8CI); Morantel;trans-1,4,5,6-Tetrahydro-1-methyl-2-[(3-methyl-2-thienyl)vinyl]pyrimidine