preferred_name: N(6)-methyl-L-lysyl(9)-[histone H3] + S-adenosyl-L-methionine => N(6),N(6)-dimethyl-L-lysyl(9)-[histone H3] + S-adenosyl-L-homocysteine + H(+)
preferred_name_lc: n(6)-methyl-l-lysyl(9)-[histone h3] + s-adenosyl-l-methionine => n(6),n(6)-dimethyl-l-lysyl(9)-[histone h3] + s-adenosyl-l-homocysteine + h(+)
label: N(6)-methyl-L-lysyl(9)-[histone H3] + S-adenosyl-L-methionine => N(6),N(6)-dimethyl-L-lysyl(9)-[histone H3] + S-adenosyl-L-homocysteine + H(+)
label_lc: n(6)-methyl-l-lysyl(9)-[histone h3] + s-adenosyl-l-methionine => n(6),n(6)-dimethyl-l-lysyl(9)-[histone h3] + s-adenosyl-l-homocysteine + h(+)