preferred_name: (1R,4R)-5-oxo-1,2-campholide => [(1R)-2,2,3-trimethyl-5-oxocyclopent-3-en-1-yl]acetate + H(+)
preferred_name_lc: (1r,4r)-5-oxo-1,2-campholide => [(1r)-2,2,3-trimethyl-5-oxocyclopent-3-en-1-yl]acetate + h(+)
label: (1R,4R)-5-oxo-1,2-campholide => [(1R)-2,2,3-trimethyl-5-oxocyclopent-3-en-1-yl]acetate + H(+)
label_lc: (1r,4r)-5-oxo-1,2-campholide => [(1r)-2,2,3-trimethyl-5-oxocyclopent-3-en-1-yl]acetate + h(+)