Febantel58306-30-2100 % similar Fenbendazole43210-67-947 % similar Thiophanate-methyl23564-05-838 % similar Oxfendazole53716-50-031 % similar Albendazole54965-21-831 % similar 2H-1,4-Benzoxazin-3(4H)-one5466-88-630 % similar