methyl-naphthalene

methylnaphthalene

[meth-uhl-naf-thuh-leen, -nap-]
noun Chemistry.
a compound, C 1 1 H 1 0 , whose alpha isomer, a colorless liquid, is used in determining cetane numbers.

Origin:
1880–85; methyl- + naphthalene

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World English Dictionary
methylnaphthalene (ˌmiːθaɪlˈnæpθəˌliːn)
 
n
either of two isomeric derivatives of naphthalene: a liquid (1-methylnaphthalene), used in standardizing diesel fuels, or a solid (2-methylnaphthalene), an insecticide

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