Valproic acid is a carboxylic acid, a clear liquid at room temperature.

We could use amino acids, we could use nucleic acids, carboxylic acids, fatty acids.

It can be used in organic chemistry to convert carboxylic acids to acyl bromides.

We could use amino acids, we could use nucleic acids, carboxylic acids, fatty acids.

The amino group and the carboxylic acid group can be on the same monomer, or the polymer can be constituted of two different bifunctional monomers, one with two amino groups, the other with two carboxylic acid or acid chloride groups.

So that we actually, to test this idea, first took a look at amino acids and some other carboxylic acids.

If the acid is a carboxylic acid, the compound contains a COX functional group, which consists of a carbonyl group singly bonded to a halogen atom.