CUMENE - (98-82-8)


Name: cumene; isopropylbenzene; (1-methylethyl)benzene
CAS Number: 98-82-8
Chemical Formula: C9H12
Molar Mass: 120.19158 g
State of Matter: colorless liquid
Mass Percent: C 89.936 %; H 10.063 % 
Isomers:  1-propylbenzene  •  mesitylene  •  1,2,4-trimethylbenzene


• organic • aromatic


• "Small amounts of cumene are used as thinners for paints, lacquers, and enamels, and as solvents in paints and other types of coatings. By far the greatest amount of cumene, however, is used as a raw material in the manufacture of phenol, acetone, and methyl styrene. These compounds, in turn, have a a great many chemical and industrial uses. Some of the most important uses are the production of plastics, such as polystyrene, phenol-formaldehyde resins, and polycarbonates.

Cumene is a skin, eye, and respiratory system irritant. If inhaled, it can cause coughing, dizziness, drowsiness, sore throat, headache, and loss of muscular coordination. In large doses, it has a narcotic effect, resulting in drowsiness and insensitivity to pain and other stimuli, and may lead to unconsciousness. There is no evidence that cumene is carcinogenic or that it causes hereditary damage to a person or to offspring of individuals exposed to the compound." 1


Bonding: polar covalent
Ionic Character: 10.61 %

For More Information


(1) - Schlager, Neil, Weisblatt, Jayne, Newton, David E., and Montney, Charles B. Chemical Compounds Vol. 1; Thomson-Gale: Detroit, MI, 2006; pp 256-7.