3097-62-9
→
3097-63-0
bicyclo[2.2.0]hex-2-ene
77-73-6
双环戊二烯
74503-28-9
(1rH,2cH,3tH,6tH,7cH,8cH)Tetracyclo[6.2.1.02,7.03,6]undec-9-en