Name of Product:Theophylline Batch No:0704001-P2002 Quantity:1000kg Manufacture Date:Mar.27.2007 Expiration Date:Mar.26.2010 TESTSPECIFICATIONSRESULTAppearanceWhite crystalline powderWhite crystalline powderIdentificationPositive reactionPositive reactionAppearance of solutionPassPassMelting point270.0 to 274.0270.0 to 274.0AcidityPassPassOrganic volatile impuritiesPassPassResidual solvents≤20ppm20ppmHeavy metals≤0.5%0.5%Related substances≤0.5%0.12%Loss on drying≤0.1%0.06%Assay99.0% to 101.0%99.64%