A salt or ester of sulfonic acid.
To introduce into (an organic compound) one or more sulfonic acid groups.
To treat with sulfonic acid.
A salt or ester of a sulfonic acid.
To introduce the sulfonic group into (an aromatic hydrocarbon) by treating with sulfuric acid.
A salt or ester of sulfonic acid, containing the group SO3 H.
To treat or react with a sulfonic acid, or to introduce such a group into a compound.