InChI=1/C7H10/c1-3-6-5-7(6)4-2/h3-4,6-7H,1-2,5H2/t6-,7-/m1/s cyclopropane, 1,2-diethenyl-, (1S,2S)- rel-(1R,2R)-1,2-divinylcyclopropane