Acid Yellow 4R dihydrogen bis[2-[[5-(aminosulphonyl)-2-hydroxyphenyl]azo]-3-oxo-N-phenylbutyramidato(2-)]cobaltate(2-) AcidyellowNW Cobaltate(2-), bis2-5-(aminosulfonyl)-2-(hydroxy-.kappa.O)phenylazo-.kappa.N1-3-(oxo-.kappa.O)-N-phenylbutanamidato(2-)-, dihydrogen cobaltate(2-), bis[2-[[5-(aminosulfonyl)-2-hydroxyphenyl]azo]-3-oxo-n-phenylbut Cobaltate(2-), bis[2-[[5-(aminosulfonyl)-2-hydroxyphenyl]azo]-3-oxo-N-phenylbutanamidato(2-)]-, dihydrogen Yellow LNW Acid Yellow 151