👉 The term "tetrapyrrole" is often used to refer to a specific type of diastereomer of pyrrole. Tetrapyrroles are compounds that exhibit different chemical behavior under various conditions, such as in aqueous solution or in an alkaline medium. In general, tetrapyrroles are characterized by having three carbon atoms with four valence electrons each. They have a tetrahedral shape due to their arrangement of the carbon atoms. The specific properties and applications of tet
