Synonyms: Direct Fast Blue BB; C.I. Azoic Diazo Component20; Diazo Fast Blue BB; Blue BB; Blue BC; DiazolBlue 2S;Benzenediazonium,4-(benzoylamino)-2,5-diethoxy-;4-(Benzoylamino)-2,5-diethoxybenzenediazonium; Fast Blue BB Salt; Adisol Fast Blue Salt BB; AzoicDiazo Component 20; Daito Blue Base BB; Kako Blue BB Salt; Blue Salt BB;Benzenediazonium,4-benzamido-2,5-diethoxy- (8CI); Fast Blue BB Base; Fast BlueBBN; Icho Salt Blue BB; Fast Blue Salt BB (6CI); Cosmosol Fast Blue BB Salt;