preferred_name: Co-precorrin-3 + S-adenosyl-L-methionine <=> Co-precorrin-4 + S-adenosyl-L-homocysteine
preferred_name_lc: co-precorrin-3 + s-adenosyl-l-methionine <=> co-precorrin-4 + s-adenosyl-l-homocysteine
label: Co-precorrin-3 + S-adenosyl-L-methionine <=> Co-precorrin-4 + S-adenosyl-L-homocysteine
label_lc: co-precorrin-3 + s-adenosyl-l-methionine <=> co-precorrin-4 + s-adenosyl-l-homocysteine