an aldehyde + glycerol => a 1-(1-hydroxyalkyl)-sn-glycerol
an aldehyde + glycerol => a 1-(1-hydroxyalkyl)-sn-glycerol
an aldehyde + glycerol => a 1-(1-hydroxyalkyl)-sn-glycerol
an aldehyde + glycerol => a 1-(1-hydroxyalkyl)-sn-glycerol