12221-38-4 3-(3-Amino-3-oxopropyl)-2-((4-(diethylamino)phenyl)azo)-6-ethoxybenzothiazolium chloride Benzothiazolium, 3-(3-amino-3-oxopropyl)-2-((4-(diethylamino)phenyl)azo)-6-ethoxy-, chloride EINECS 235-411-6