Toltrazuil CAS Number: 69004-03-1 Formula: C18H14F3N3O4S Molecular Weight: 425.39 Appearance: white or almost white crystalline powder. Content: max98.0% Fluorine content: max12.0% Melting point: 193 - 196 â?? Application:Toltrazuril Lord for poultry coccidiosis, effectively preventing coccidiosis, so oocysts disappear, but does not affect the growth and development of chicks and produce immunity against coccidiosis.