1,4-methanobenz[a]azulene-7,10-dione, 1,4,4a,10a-tetrahydro-, (1R,4S,4aR,10aS)- InChI=1/C15H12O2/c16-10-3-5-11-12(6-4-10)15(17)14-9-2-1-8(7-9)13(11)14/h1-6,8-9,13-14H,7H2/t8-,9+,13+,14+/m1/s rel-(1R,4S,4aR,10aS)-1,4,4a,10a-tetrahydro-1,4-methanobenzo[a]azulene-7,10-dione