33979-43-0 Propanenitrile, 3-((2-(acetyloxy)ethyl)(4-((5,6-dichloro-2-benzothiazolyl)azo)phenyl)amino)- Propanonitrile, 3-((2-hydroxyethyl)(4-((5,6-dichloro-1,3-benzothiazol-2-yl)azo)phenyl)amino)-, acetate ester