preferred_name: a (4S)-2,3-dehydroflavan-3,4-diol + H(+) = a 4-H-anthocyanidin with a 3-hydroxy group + H2O
preferred_name_lc: a (4s)-2,3-dehydroflavan-3,4-diol + h(+) = a 4-h-anthocyanidin with a 3-hydroxy group + h2o
label: a (4S)-2,3-dehydroflavan-3,4-diol + H(+) = a 4-H-anthocyanidin with a 3-hydroxy group + H2O
label_lc: a (4s)-2,3-dehydroflavan-3,4-diol + h(+) = a 4-h-anthocyanidin with a 3-hydroxy group + h2o