Einecs 280-219-8

3-[[4-[2-(Potassiosulfooxy)ethoxy]phenyl]azo]-1,1'-biphenyl-4-ol

Potassium 2-(4-((4-hydroxybiphenyl-3-yl)azo)phenoxy)ethyl sulfate

potassium 2-[4-[(4-hydroxybiphenyl-3-yl)azo]phenoxy]ethyl sulphate