U.S. National Library of Medicine
Two-ring crystalline hydrocarbons isolated from coal tar. They are used as intermediates in chemical synthesis, as insect repellents, fungicides, lubricants, preservatives, and, formerly, as topical antiseptics.
The numerical value of naphthalenes in Chaldean Numerology is: 5
The numerical value of naphthalenes in Pythagorean Numerology is: 6
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"naphthalenes." Definitions.net. STANDS4 LLC, 2017. Web. 30 Mar. 2017. <http://www.definitions.net/definition/naphthalenes>.