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paraxylene
paraxylene n.
Brit. 
/ˌparəˈzʌɪliːn/
, /ˌparəˈzʌɪliːn/U.S. /ˌpɛrəˈzaɪˌlin/
the para-isomer of xylene, C6H4(CH3)2, a low-melting solid present in petroleum naphtha and used esp. as an intermediate in chemical manufacture./ˌpɛrəˈzaɪˌlin/ΘΚΠ
the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > benzene derivatives > xylenes
xylene1851
xylol1851
paraxylene1873
1873 Jrnl. Chem. Soc. 26 272 The author, by acting upon isoxylene and paraxylene with benzyl chloride, in presence of zinc, has obtained benzylisoxylene and benzylparaxylene.
1954 R. W. Moncrieff Artific. Fibres (ed. 2) xxi. 265 Development of a method for making large quantities of para-xylene proved to be difficult and delayed the manufacture of Terylene in the United Kingdom.
1998 Textile Horizons June 20/2 Koch is a major supplier of paraxylene, an important fibre raw material.
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