The molecule is (4R)-Limonene hydroperoxide where the hydroperoxy group is located at position 2 of the limonene skeleton; one of the two main allergenic hydroperoxides formed by autoxidation of (4R)-limonene. It has a role as an allergen.
(4S)-6-hydroperoxy-1-methyl-4-prop-1-en-2-ylcyclohexene