1,2-bis(4-hydroxy-3-methoxyphenyl)ethylene + O2 => 2 vanillin
1,2-bis(4-hydroxy-3-methoxyphenyl)ethylene + o2 => 2 vanillin
1,2-bis(4-hydroxy-3-methoxyphenyl)ethylene + O2 => 2 vanillin
1,2-bis(4-hydroxy-3-methoxyphenyl)ethylene + o2 => 2 vanillin