[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][N][=C][=S]"}, {"from": "gpt", "value": "The molecule is an isothiocyanate having a methyl group attached to the nitrogen. It is also the active nematicide of the pronematicide metam-sodium. It has a role as a fumigant, a nematicide and a lachrymator."}]