28413-93-6 Cyclopentanecarboxylic acid, 2,3-dihydroxy-2-isopropyl-3-methyl-5-methylene-4-oxo-, (+)- Cyclopentanecarboxylic acid, 2,3-dihydroxy-3-methyl-5-methylene-2-(1-methylethyl)-4-oxo- Xanthocidin