gradeACS reagentQuality Level200vapor density2.77 (vs air)vapor pressure166 mmHg ( 37.7 °C)74.6 mmHg ( 20 °C)Assay≥99.0%formliquidautoignition temp.1043 °Fexpl. lim.8 %impuritiesH2SO4, passes test (darkened)thiophene, passes test (limit ∼1ppm)≤0.005% S compounds≤0.05% water (Karl Fischer)evapn. residue≤0.001%colorAPHA: ≤10refractive indexn20/D 1.501 (lit.)bp80 °C (lit.)mp5.5 °C (lit.)density0.874 g/mL at 25 °C (lit.)SMILES stringc1ccccc1InChI1S/C6H6/c1-2-4-6-5-3-1/h1-6HInChI keyUHOVQNZJYSORNB-UHFFFAOYSA-N