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Related to naphthene: naphthalene, Aromatics, paraffins


 (năf′thēn′, năp′-)
Any of several cycloalkane hydrocarbons having the general formula CnH2n and found in various petroleums.

naph·then′ic (-thĕn′ĭk) adj.


(ˈnæfθiːn; ˈnæp-)
(Chemistry) any of a class of cycloalkanes, mainly derivatives of cyclopentane, found in petroleum
[C20: from naphtha + -ene]


(ˈnæf θin, ˈnæp-)

any of a group of hydrocarbon ring compounds of the general formula CnH2n, found in certain petroleums.
[1840–50; naphth(a) + -ene]
naph•the′nic (-ˈθi nɪk, -ˈθɛn ɪk) adj.
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References in periodicals archive ?
These compounds belong to the classes, fatty acids and their esters, triglycerides, alcohols, steroids and their glycosides, phenol derivatives, coumarins, alkaloids of different classes, monocyclic naphthene derivatives, terpenes and flavonoids, and their glycosides.
Apart from continuing to break the heteroatomic functional groups and side chains, forming small quantity of water, carbon dioxide and nitrogen, the main reaction is breaking of a large number of C-C bonds, including ring-opening and rupture of naphthene.
The ASTM D4124-84 method separates the pure bitumen into four fractions: saturates, naphthene aromatics, polar aromatics and asphaltenes.