[{"from": "human", "value": "Provide a description of this molecule. [C][C][=C][C][=Branch1][=Branch1][=C][C][=C][Ring1][=Branch1][C]"}, {"from": "gpt", "value": "The molecule is an aromatic hydrocarbon, based on benzene with two methyl substituents. It is an isomer of xylene. Xylene occurs naturally in petroleum and coal tar, and is major component of gasoline and fuel oil. Xylene is used mainly as a solvent and in the printing, rubber, and leather industries. The major chemical use of metaxylene is in the manufacture of isophthalic acid, which is used as a copolymer to alter the properties of Polyethylene terephthalate (PET) making PET more suitable for the manufacture of soft drinks bottles (L938, T10, L165). It can cause  irritation eyes, skin, nose, throat; dizziness, excitement, drowsiness, incoordination, staggering gait; corneal vacuolization; anorexia, nausea, vomiting, abdominal pain; dermatitis. The targets of this compound are eyes, skin, respiratory system, central nervous system, gastrointestinal tract, blood, liver, kidneys."}]