Monoethyl malonic acid belongs to the class of organic compounds known as dicarboxylic acids and derivatives. These are organic compounds containing exactly two carboxylic acid groups. Monoethyl malonic acid exists as a solid soluble (in water) and a weakly acidic compound (based on its pKa).

Bephenium hydroxynaphthoate (INN, trade names Alcopara, Alcopar, Befenium, Debefenium, Francin, Nemex) is an anthelmintic agent formerly used in the treatment of hookworm infections and ascariasis.

Vanillin is mainly used as a flavouring agent, primarily in foods and beverages such as chocolate and dairy products, but also to mask unpleasant tastes in medicines or livestock fodder.