[{"from": "human", "value": "What can you tell me about this molecule? [C][C][=C][Branch1][N][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][N][=C][=O][N][=C][=O]"}, {"from": "gpt", "value": "The molecule is a chemical compound of cyanide and an aromatic diisocyanate with the formula CH3C6H3(NCO)2. It is used in the manufacture of polyurethane. (L577) Two of the six possible isomers are commercially important: 2,4-TDI (CAS: 584-84-9) and 2,6-TDI (CAS: 91-08-7). 2,4-TDI is produced in the pure state, but TDI is often marketed as 80/20 and 65/35 mixtures of the 2,4 and 2,6 isomers respectively. It is produced on a large scale, accounting for 34.1% of the global isocyanate market in 2000, second only to MDI."}]