6-hydroxymellein + S-adenosyl-L-methionine => 6-methoxymellein + S-adenosyl-L-homocysteine + H(+)
6-hydroxymellein + s-adenosyl-l-methionine => 6-methoxymellein + s-adenosyl-l-homocysteine + h(+)
6-hydroxymellein + S-adenosyl-L-methionine => 6-methoxymellein + S-adenosyl-L-homocysteine + H(+)
6-hydroxymellein + s-adenosyl-l-methionine => 6-methoxymellein + s-adenosyl-l-homocysteine + h(+)