Answer | Crossword Clue |
---|---|
xanthones | a ketone C13H8O2 that is the parent of several natural yellow pigments |
flavin | complex heterocyclic ketone that is common to the nonprotein part of several important yellow enzymes, the flavoproteins |
flavins | complex heterocyclic ketone that is common to the nonprotein part of several important yellow enzymes, the flavoproteins |