[{"from": "human", "value": "Please give me some details about this molecule. [C][Branch1][S][C][Branch1][=Branch2][C][Branch1][C][F][Branch1][C][F][F][Branch1][C][F][F][Branch1][S][C][Branch1][=Branch2][C][Branch1][C][F][Branch1][C][F][F][Branch1][C][F][F][Branch1][C][F][F]"}, {"from": "gpt", "value": "The molecule is a fluorocarbon that is pentane in which all of the hydrogens have been replaced by fluorines. It has a role as a radioopaque medium and an ultrasound contrast agent. It is a fluoroalkane and a fluorocarbon. It derives from a hydride of a pentane."}]