preferred_name: isorhapontigenin + S-adenosyl-L-methionine => 4'-O-methylisorhapontigenin + S-adenosyl-L-homocysteine + H(+)
preferred_name_lc: isorhapontigenin + s-adenosyl-l-methionine => 4'-o-methylisorhapontigenin + s-adenosyl-l-homocysteine + h(+)
label: isorhapontigenin + S-adenosyl-L-methionine => 4'-O-methylisorhapontigenin + S-adenosyl-L-homocysteine + H(+)
label_lc: isorhapontigenin + s-adenosyl-l-methionine => 4'-o-methylisorhapontigenin + s-adenosyl-l-homocysteine + h(+)