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the simplest ketone; a highly flammable liquid widely used as an organic solvent and as material for making plastics
a colorless flammable gas used chiefly in welding and in organic synthesis
a colorless flammable gas used chiefly in welding and in organic synthesis
a colorless flammable gas used chiefly in welding and in organic synthesis
a colorless flammable gas used chiefly in welding and in organic synthesis