0  B8R1.18  CC1CC(=O)C=C1C Molport-003-985-986 [0,0,0,0,1,0|2,0,1]=4
1  B8R1.50  CC1=C(C(=O)CC1)C Molport-003-931-571 [0,0,0,0,1,0|2,0,1]=4