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Diterpenes are a class of chemical compounds that are part of the larger group of isoprenoids. They are characterized by their molecular structure, which is built from four isoprene units, totaling 20 carbon atoms (C₂₀H₃₂).

These compounds are widely found in nature, particularly in plants. For example, phytol, a component of chlorophyll, and abietic acid, a major part of rosin, are both diterpenes. Vitamin A is also a derivative of diterpenes. Diterpenes and their derivatives have various uses, including in perfumes, varnishes, and as precursors for other important molecules.12

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