Einecs 287-126-1

2,4-Dihydro-4-[(4-methoxy-2-nitrophenyl)azo]-2-[2-methoxy-5-[[2-(1-oxopropoxy)ethyl]sulfonyl]phenyl]-5-methyl-3H-pyrazol-3-one

2,4-Dihydro-4-((4-methoxy-2-nitrophenyl)azo)-1-(2-methoxy-5-((2-(propionyloxy)ethyl)sulphonyl)phenyl)-5-methyl-3H-pyrazol-3-one

2,4-dihydro-4-[(4-methoxy-2-nitrophenyl)azo]-1-[2-methoxy-5-[[2-(propionyloxy)ethyl]sulphonyl]phenyl]-5-methyl-3H-pyrazol-3-one