Patent Blue V
Patent Blue 5
CI Food Blue 5
CI No. 42051
Class: Triarylmethane
Calcium or sodium salt of 2-[(4-diethylaminophenyl)(4-diethylimino-2,5-cyclohexandien-1-ylidene)methyl]-4-hydroxy-1,5-benzene disulfonate
Calcium or sodium salt of [4-[alpha-(4-diethyl-aminophenyl)-5-hydroxy-2,4-disulfonatophenylmethylidene]-2,5-cyclohexadien-1-ylidene] diethylammonium hydroxide inner salt Calcium salt: C27H31N2O7S2½Ca Formula wt, calcium salt 579.72
Sodium salt: C27H31N2O7S2Na Formula wt, sodium salt 582.67
131 [3536-49-0] 8QE473DV1Z patent blue v
CI Food Blue 5
CI No. 42051
Class: Triarylmethane
Calcium or sodium salt of 2-[(4-diethylaminophenyl)(4-diethylimino-2,5-cyclohexandien-1-ylidene)methyl]-4-hydroxy-1,5-benzene disulfonate
Calcium or sodium salt of [4-[alpha-(4-diethyl-aminophenyl)-5-hydroxy-2,4-disulfonatophenylmethylidene]-2,5-cyclohexadien-1-ylidene] diethylammonium hydroxide inner salt Calcium salt: C27H31N2O7S2½Ca Formula wt, calcium salt 579.72
Sodium salt: C27H31N2O7S2Na Formula wt, sodium salt 582.67
131 [3536-49-0] 8QE473DV1Z patent blue v
DESCRIPTION
Patent Blue V occurs as a blue powder or granules. It is principally the calcium or sodium salt of 2-[4-[alpha-(4-diethyl-aminophenyl)-5-hydroxy-2,4-disulfonatophenylmethylidene]-2,5-cyclohexadien-1-ylidene] diethylammonium hydroxide inner salt, and subsidiary coloring matters. Water, sodium chloride, sodium sulfate, calcium chloride, and calcium sulfate can be present as the principal uncolored components. It is soluble in water and slightly soluble in ethanol.