That, perhaps, is the particular importance of the unusual aldehyde group at carbon-18.
The group without R is called the aldehyde group or formyl group.
Related to (i), the aldehyde group is somewhat polar.
A dialdehyde is an organic chemical compound with two aldehyde groups.
The conversion of the aldehyde group to a diether "head" occurs in two steps.
An aldohexose is a hexose with an aldehyde group on one end.
It has one aldehyde group and so is part of the aldose family.
Calostomal is an organic compound that has a carboxylic acid and an aldehyde group.
It is mainly available as an aqueous solution, and in these solutions the aldehyde groups are hydrated.
It has an aldehyde group and is an aldose.
