preferred_name: all-trans-violaxanthin = (5R,6S)-5,6-epoxi-capsanthin
preferred_name_lc: all-trans-violaxanthin = (5r,6s)-5,6-epoxi-capsanthin
label: all-trans-violaxanthin = (5R,6S)-5,6-epoxi-capsanthin
label_lc: all-trans-violaxanthin = (5r,6s)-5,6-epoxi-capsanthin