(1R,5S)-6,6-Dimethyl-3-oxabicyclo(3.1.0)hexane-2,4-dione

It serves as a versatile building block for constructing more complex molecules due to its strained bicyclic structure and reactive dione functionality. The compound is employed in research chemistry, including studies involving Meldrum’s acid derivatives and cyclopropane synthesis, and it also appears in the manufacturing pathways of certain pharmaceutical intermediates, although it is not itself an active drug. Commercial suppliers classify it strictly for research and development use, noting that it is moisture sensitive and may cause irritation upon contact or inhalation, so it requires proper laboratory handling. (1R,5S)-6,6-Dimethyl-3-oxabicyclo[3.1.0]hexane-2,4-dione—also known as Caronic anhydride—is used mainly as a chemical intermediate in organic synthesis, rather than as a therapeutic agent.