Tiamulin Hydrogen Fumarate (USP32) ItemsSpecificationsAppearanceWhite crystal powderIdentificationIR-spectrum/HPLC retention timespHFrom 3.1 to 4.1Loss on dryingNot more than 0.5%Heavy Metals (ppm)Not more than 10Fumarate assay18.6-19.4%Assay (HPLC)98.0-102.0%Package: 25kg/drum. Shelf Life: 5 years.