label: 3alpha,6beta-dihydroxy-4beta-hydroperoxy-10alphaH,11alpha-methyl-ambrosa-1-en-12-oic acid-gamma-lactone
label_lc: 3alpha,6beta-dihydroxy-4beta-hydroperoxy-10alphah,11alpha-methyl-ambrosa-1-en-12-oic acid-gamma-lactone