... ,D,E etc.·CharacteristicsThe appearance of normal Lac Dye Red is bright red powder, can dissolve in ethanol and propanediol, slightly ... s reddish orange when PH is between 3~5,red to purplish red color when PH is between 5~7, it’ ... adding into food or beverage.·Quality StandardItemsEnterprise StandardNormal ProductWater solubleAppearanceBright Red PowderBrown PowderColor Value E(1%,1cm,490nm)130~16070~ ...