[{"from": "human", "value": "What can you tell me about this molecule? [C][N][Branch1][#Branch1][C][C][=Branch1][C][=O][O][/C][=Branch1][#Branch2][=N][/P][=Branch1][C][=O][Branch1][C][O][O][/N]"}, {"from": "gpt", "value": "The molecule is the phosphorylated form of creatine. It is primarily found endogenously in the skeletal muscles of vertebrates where it serves a critical role as a rapidly acting energy buffer for muscle cell actions like contractions via its ability to regenerate adenosine triphosphate (ATP) from adenosine diphosphate (ADP)."}]