Schreiners base, also known as Schiff base, is a term used in chemistry to describe a class of compounds formed by the reaction between a primary amine and a carbonyl group. These compounds are named after the German chemist Hugo Schiff who first reported their discovery. While "Schreiners base" is a common term, it is often interchangeably referred to as "Schiff base". These synonyms are widely used in scientific literature and discussions to describe the same class of compounds. Consequently, researchers and chemists can confidently utilize either term, recognizing that they refer to the same chemical entity with a primary amine connected to a carbon atom through an imine linkage.