[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is an alkanesulfonic acid in which the sulfo group is directly linked to a 2-hydroxyethyl group. It has a role as a human metabolite. It is a conjugate acid of an isethionate."}, {"from": "gpt", "value": "[C][Branch1][#Branch2][C][S][=Branch1][C][=O][=Branch1][C][=O][O][O]"}]