preferred_name: 2-methyleneglutarate <=> 2-methylene-3-methylsuccinate
preferred_name_lc: 2-methyleneglutarate <=> 2-methylene-3-methylsuccinate
label: 2-methyleneglutarate <=> 2-methylene-3-methylsuccinate
label_lc: 2-methyleneglutarate <=> 2-methylene-3-methylsuccinate