Yellow 4GD

pigment yellow 155

1,4-Bis[2-[2,5-bis(methoxycarbonyl)phenylazo]acetoacetylamino]benzene

N,N'-Bis[2-[2,5-bis(methoxycarbonyl)phenylazo]acetoacetyl]-p-phenylenediamine

tetramethyl 2,2'-[1,4-phenylenebis[imino(1-acetyl-2-oxoethane-1,2-diyl)azo]]bisterephthalate

2,2'-[1,4-Phenylenebis[imino(1-acetyl-2-oxo-2,1-ethanediyl)azo]]bis(terephthalic acid dimethyl) ester