quercetin 3-O-methyltransferase activity
quercetin 3-o-methyltransferase activity
S-adenosyl-L-methionine:3,5,7,3',4'-pentahydroxyflavone 3-O-methyltransferase activity
s-adenosyl-l-methionine:3,5,7,3',4'-pentahydroxyflavone 3-o-methyltransferase activity