[{"from": "human", "value": "Provide a brief overview of this molecule. [C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][N][C][=Branch1][#Branch2][=N][C][=C][C][=C][C][=C][Ring1][=Branch1][N]"}, {"from": "gpt", "value": "The molecule is guanidine carrying a phenyl substituent on each of the two amino groups. It is used as an accelerator in the rubber industry. It has a role as an allergen."}]