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Patent Blue 5 (E131)
Synonyms: N-[4-[[4-(Diethylamino)phenyl](5-hydroxy-2,4-disulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-N-ethyl-ethanaminium Hydroxide Sodium Salt, C.I. 42051:2, C.I. Food Blue 5:2, Food Blue 5:2, Acid Blue 3 Sodium Salt
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