What are the main uses of 2,2-Dihydroxy-1H-indene-1,3(2H)-dione (CAS: 485-47-2)?

2,2-Dihydroxy-1H-indene-1,3(2H)-dione is primarily used in the pharmaceutical industry as a building block for drug development. It also serves as an intermediate in the synthesis of dyes, pigments, and other organic compounds. In research settings, it is employed for chemical studies and functional group modifications. Additionally, it may be used in specialty chemical applications requiring high chemical reactivity.