921202-29-1

2-Oxabicyclo[2.2.1]heptane-1-carboxylic acid, 4,7,7-trimethyl-2-oxo-,1,1'-[(1S,2R)-1,2,3,4-tetrahydro-1,2-phenanthrenediyl] ester,(1S,1'S,4R,4'R)-, compd. with trichloromethane (1:?)