A class of organic pigments derived from the breakdown of heme in hemoglobin, including bilirubin and biliverdin.
From Latin 'bilis' (bile) + '-in' (a common suffix for chemical compounds). The term was created by chemists to categorize these bile pigment molecules.
Bilins are nature's color palette—they're the pigments that give bile its yellow-green color and can even make some birds' feathers glow with brilliant hues!
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