A colorless compound or precursor in blood that can develop into hemochrome or colored blood pigments.
From 'hemochrome' plus Greek '-gen' (producing, generating); a biochemistry term describing the molecular building blocks that form colored hemochromes.
Hemochromogens are like the 'proto-hemoglobin'—understanding these intermediate compounds helped scientists figure out exactly how hemoglobin picks up and releases oxygen!
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