22012-72-2 CL 64976 N,N-(1,6-Bis(benzylthio)-2,5-dithiahexan-1,6-diyliden)bis(diethylphosphoramidat) Phosphonodithioimidocarbonic acid ethylenedibenyl P,P,P,P-tetraethyl ester Zilantel Zilantel [USAN:INN] Zilantela Zilantelum