laricitrin + S-adenosyl-L-methionine = 3,3'-O-dimethylmyricetin + S-adenosyl-L-homocysteine + H(+)
laricitrin + s-adenosyl-l-methionine = 3,3'-o-dimethylmyricetin + s-adenosyl-l-homocysteine + h(+)
laricitrin + S-adenosyl-L-methionine = 3,3'-O-dimethylmyricetin + S-adenosyl-L-homocysteine + H(+)
laricitrin + s-adenosyl-l-methionine = 3,3'-o-dimethylmyricetin + s-adenosyl-l-homocysteine + h(+)