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