potassium 2-[4-[(4-hydroxybiphenyl-3-yl)azo]phenoxy]ethyl sulphate;Potassium 2-(4-((4-hydroxybiphenyl-3-yl)azo)phenoxy)ethyl sulfate;3-[[4-[2-(Potassiosulfooxy)ethoxy]phenyl]azo]-1,1'-biphenyl-4-ol;Einecs 280-219-8
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