preferred_name: iodide + S-adenosyl-L-methionine <=> iodomethane + S-adenosyl-L-homocysteine
preferred_name_lc: iodide + s-adenosyl-l-methionine <=> iodomethane + s-adenosyl-l-homocysteine
label: iodide + S-adenosyl-L-methionine <=> iodomethane + S-adenosyl-L-homocysteine
label_lc: iodide + s-adenosyl-l-methionine <=> iodomethane + s-adenosyl-l-homocysteine