label: 2-methoxy-6-all-trans-hexaprenyl-1,4-benzoquinol + S-adenosyl-L-methionine <=> 6-methoxy-3-methyl-2-all-trans-hexaprenyl-1,4-benzoquinol + S-adenosyl-L-homocysteine + H(+)
label_lc: 2-methoxy-6-all-trans-hexaprenyl-1,4-benzoquinol + s-adenosyl-l-methionine <=> 6-methoxy-3-methyl-2-all-trans-hexaprenyl-1,4-benzoquinol + s-adenosyl-l-homocysteine + h(+)