組織名はfmnh2:nad(p)+oxidoreductaseで、別名にnad(p)h-fmn reductase,nad(p)h-dependent fmn reductase,nad(p)h:fmn oxidoreductase,nad(p)h:flavin oxidoreductase,nad(p)h2 dehydrogenase(fmn),nad(p)h2:fmn oxidoreductase,riboflavin mononucleotide reductase,flavine mononucleotide reductase,riboflavin mononucleotide(reduced nicotinamide adenine dinucleotide(phosphate))reductase,flavin mononucleotide reductase,riboflavine mononucleotide reductaseがある。