Patent Blue V (Powder)
Vidhi Dyestuffs Mfg. Ltd目前只在以下作出標識的區域展示其產品資料：
Patent Blue V (Powder), European permitted synthetic food color, is a reduced dusting Granular water soluble dye powder, free from lumps or visible impurities. It has a pure dye content no lower than 85% and the C.I. Patent Blue V consists essentially of the calcium or sodium compound of [4-(α-(4-diethylaminophenyl)-5-hydroxy-2,4-disulfophenyl-methylidene)2,5-cyclohexadien-1-ylidene] diethylammonium hydroxide inner salt and subsidiary colouring matters together with sodium chloride and/or sodium sulfate and/or calcium sulfate as the principal uncoloured components. The color index number is 42051. The chemical formula is C27H31N2O7S2Na and the molecular weight is 582,67.
Vidhi Dyestuffs Mfg. Ltd., (VDML) is an Institution in Edible Food Colour Technology and is engaged in the manufacturing and worldwide distribution of D&C Lakes & Blends, FD&C Lakes, D&C Colours (U.S. FDA Approved Colours Certified for use in Drugs & Cosmetics), FD&C Certified Colours (U.S. FDA Approved Colours), Lakes and Synthetic Water Soluble Food Colours. All these are available in various forms like Microfine (Plating Grade) powder, Granular and just plain Powder form.
Vidhi Dyestuffs Mfg. Ltd