InChI=1/C10H6N2/c11-5-9(6-12)10-7-1-2-8(10)4-3-7/h1-4,7-8 bicyclo[2.2.1]hepta-2,5-dien-7-ylidenemalononitrile propanedinitrile, bicyclo[2.2.1]hepta-2,5-dien-7-ylidene-