preferred_name: 3',4',7-trihydroxyflavone + S-adenosyl-L-methionine => 4',7-dihydroxy-3'-methoxyflavone + S-adenosyl-L-homocysteine + H(+)
preferred_name_lc: 3',4',7-trihydroxyflavone + s-adenosyl-l-methionine => 4',7-dihydroxy-3'-methoxyflavone + s-adenosyl-l-homocysteine + h(+)
label: 3',4',7-trihydroxyflavone + S-adenosyl-L-methionine => 4',7-dihydroxy-3'-methoxyflavone + S-adenosyl-L-homocysteine + H(+)
label_lc: 3',4',7-trihydroxyflavone + s-adenosyl-l-methionine => 4',7-dihydroxy-3'-methoxyflavone + s-adenosyl-l-homocysteine + h(+)