👉 Quinonoids are a class of organic compounds that are characterized by having a ring system at the center, with two or more rings attached to each other. These rings can be cyclic (i.e., they contain a central atom bonded to four atoms) or non-cyclic (i.e., they contain a central atom bonded to five or six atoms). Quinonoids have been used in various fields such as medicine, chemistry, and biology. The term "quinonoid" is often
