-Standard:EP/BP -Molecular formula:C13H8Cl2N2O4 -Package:25kg/drum -Main purpose:resist worm drug which used in beast cestode and ruminant alike trematode.Main SpeificationsITEMSSPECIFICATIONSAppearanceA yellowish white powder2-Choro-4-Nitroaniline≤100ppm5-Chlor-Salicylic Acid≤60ppmMelting Point228-232Loss on Drying≤0.5%Sulphated Ash≤0.1%Assay98.0-101.0%