EP grade Troxerutin,trihydroxyethylrutin,VP4,we can supplybig quantity and comptitive price. EP grade Troxerutin,trihydroxyethylrutin,VP4,we can supplybig quantity and comptitive price. CharacteristicsYellowsh-green crystalline powder,Yellowsh-green crystalline powder,hygroscopichygroscopicIdentificationA Infrared absorption CRSA Infrared absorption BRSB Results the principal peak in the ...