Transhinones, Isotanshinones, and Derivatives Tanshinones and isotanshinones are a class of active triterpenoid compounds derived from the traditional Chinese medicinal herb Salvia miltiorrhiza (Danshen). These natural products have garnered significant attention due to their diverse biological activities. Tanshinone I and II are the most representative members, known for their potent antioxidant and anti-inflammatory properties. Isotanshinones share similar structural features but exhibit distinct pharmacological profiles that may offer additional therapeutic benefits. Derivatives of tanshinones have been extensively studied for their potential applications in treating cardiovascular diseases, neurological disorders, and cancer. For instance, tanshinone IIA has shown promise as an anti-angiogenic agent, which can inhibit the formation of new blood vessels supporting tumor growth. Additionally, these compounds possess pro-apoptotic effects, promoting cell death in malignant cells. The chemical structure and biological activities of tanshinones, isotanshinones, and their derivatives make them promising candidates for developing novel therapeutics with minimal side effects. Further research is ongoing to explore the mechanisms underlying their diverse pharmacological properties and to optimize their therapeutic potential in various disease models.