rhamnetin + S-adenosyl-L-homocysteine + H(+) => quercetin + S-adenosyl-L-methionine
rhamnetin + s-adenosyl-l-homocysteine + h(+) => quercetin + s-adenosyl-l-methionine
rhamnetin + S-adenosyl-L-homocysteine + H(+) => quercetin + S-adenosyl-L-methionine
rhamnetin + s-adenosyl-l-homocysteine + h(+) => quercetin + s-adenosyl-l-methionine