Mrv1533004251507582D 4 3 0 0 0 0 999 V2000 2.0625 -0.7145 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 1.6500 -0.0000 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 0.8250 0.0000 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 0.0000 0.0000 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 0 0 0 2 3 1 0 0 0 0 3 4 3 0 0 0 0 M END > CHEM004122 > chemdb > CCC#C > InChI=1S/C4H6/c1-3-4-2/h1H,4H2,2H3 > KDKYADYSIPSCCQ-UHFFFAOYSA-N > C4H6 > 54.092 > 54.046950193 > 0 > 10 > 6.846744432283612 > 1 > 0 > 0 > 0 > but-1-yne > 1.41 > 1.4348457989999996 > -1.89 > 0 > 0 > 0 > 0.0 > 18.6678 > 0 > 1 > 6.98e-01 g/l > 1-butyne > 1 > 1-Butyne > 107-00-6 > Ethyl acetylene $$$$