2-(8,8a-Dimethyl-4-oxo-1,2,3,4,6,7,8,8a-octahydro-naphthalen-2-yl)-acrylic acid 2-naphthaleneacetic acid, 1,2,3,4,6,7,8,8a-octahydro-8,8a-dimethyl-alpha-methylene-4-oxo-, (2S,8S,8aR)- Dihydroflourensic acid InChI=1/C15H20O3/c1-9-5-4-6-12-13(16)7-11(8-15(9,12)3)10(2)14(17)18/h6,9,11H,2,4-5,7-8H2,1,3H3,(H,17,18)/t9-,11+,15+/m0/s rel-2-[(2R,8R,8aS)-8,8a-dimethyl-4-oxo-1,2,3,4,6,7,8,8a-octahydronaphthalen-2-yl]acrylic acid