[iso.al.lox.a.zine] n [is- + allantoic + oxalic + azine] (1936): a yellow solid that is the precursor of various flavins (as riboflavin)
ISOALLOXAZINE
Meaning of ISOALLOXAZINE in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012