IARC MONOGRAPHS ON THE EVALUATION OF CARCINOGENIC ...

STYRENE
This substance was considered by previous Working Groups, in February 1978
(IARC, 1979), in March 1987 (IARC, 1987) and in February 1994 (IARC, 1994a). Since
that time, new data have become available, and these have been incorporated into the
monograph and taken into consideration in the present evaluation.
1.1 Chemical and physical data
1.1.1 Nomenclature
1. Exposure Data
Chem. Abstr. Serv. Reg. No.: 100-42-5
Replaced CAS Reg. No.: 79637-11-9
Chem. Abstr. Name: Ethenylbenzene
IUPAC Systematic Name: Styrene
Synonyms: Cinnamene; phenethylene; phenylethene; phenylethylene; styrol; styrole;
styrolene; vinylbenzene; vinylbenzol
1.1.2 Structural and molecular formulae and relative molecular mass
C 8H 8
HC CH 2
1.1.3 Chemical and physical properties of the pure substance
Relative molecular mass: 104.15
(a) Description: Colourless, viscous liquid with a pungent odour (WHO, 1983)
(b) Boiling-point: 145 ºC (Lide, 2001)
(c) Melting-point: –31 ºC (Lide, 2001)
(d) Density: d 20
4 0.9060 (Lide, 2001)
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