[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C][O][P][=Branch1][C][=O][Branch1][C][O][O]"}, {"from": "gpt", "value": "The molecule is a monoalkyl phosphate epitope having ethyl as the alkyl group. It has a role as an epitope and a phosphoantigen. It is a conjugate acid of an ethyl hydrogen phosphate(1-)."}]