the molecular structures of these molecules is more conjugated than represented in the images shown below. the pigments' colors can range from yellow to green. one of the most common diarylide yellow pigments is pigment yellow 12. its cas number is . other diarylide yellow pigments include ‘’’yellow 13’’’ , ‘’’yellow 17’’’ and ‘’’yellow 83’’’ . these pigments share the same backbone and vary in color depending on substitution of the benzene rings. worldwide production of color organic pigments was estimated to be about 250,000 metric tons (t) in 2006, with about 25%, or 62,500 t, being diarylide yellows.