The chemical Dihydrotanshinone I has a designated molecular formula of C18H14O3 and a molecular weight of 278.307 g/mol. Synonyms may include: Tanshinone I, dihydro-, 15,16-Dihydrotanshinone I, (-)-Dihydrotanshinone I, UNII-562G9360V6, HSDB 8105 (ChemID).