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Keywords from Image Description:
Saturated hydrocarbons ballandstick. Ballandstick models of butane top left isobutane top right cyclobutane middle left methylcyclopropane middle right and bicyclo butane bottom Created using accelrys html Accelrys DS Visualizer Pro and GIMP Own Fvasconcellos Alkanes Cycloalkanes Butane Ballandstick models Isobutane Structural