preferred_name: a 1-(1-hydroxyalkyl)-sn-glycerol <=> an aldehyde + glycerol
preferred_name_lc: a 1-(1-hydroxyalkyl)-sn-glycerol <=> an aldehyde + glycerol
label: a 1-(1-hydroxyalkyl)-sn-glycerol <=> an aldehyde + glycerol
label_lc: a 1-(1-hydroxyalkyl)-sn-glycerol <=> an aldehyde + glycerol