4 4 0 0000 0 0 0 0 0999 V2000 0.2382 1.7138 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0.2382 0.8888 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0.6507 0.1743 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 -0.1743 0.1743 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 1 2 2 0 2 3 1 0 3 4 1 0 2 4 1 0 M END > InChI=1S/C4H6/c1-4-2-3-4/h1-3H2 > XSGHLZBESSREDT-UHFFFAOYSA-N > 1/0/N:1,3,4,2/E:(2,3)/rA:4nCCCC/rB:d1;s2;s2s3;/rC:.2382,1.7138,0;.2382,.8888,0;.6507,.1743,0;-.1743,.1743,0; > C4 H6 > 54.09044 > C=C1CC1 > 72487 $$$$