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Alkylated naphthalene  

Available in high- and low-viscosity grades, Synesstic™ AN (Alkylated Naphthalene) base stocks are well-suited for lubricants in a variety of automotive and industrial applications. Lubricants formulated with Synesstic AN can be more stable and higher performing.

Synesstic AN is particularly suited for use as a base stock in synthetic lubricant applications that require high stability under extreme operating conditions. It is available for use as a lubricant base stock with incidental food contact.

The Food and Drug Administration (FDA) approved the Food Contact Notification filings, FCN 915 and 899, associated with the two Synesstic AN base stock fluids grades 5 cSt and 12 cSt, respectively. In addition, Synesstic AN base stock fluids are HX-1 National Sanitation Foundation (NSF) registered.


  • Increased thermal and oxidative stability
  • Increased hydrolytic stability
  • Good additive solvency
  • Seal compatibility


  • ExxonMobil Chemical Page

    Synesstic™ AN (Alkylated Naphthalene)

    Discover technical details and specifications for Synesstic™ AN product grades.

    View data sheets

Industries and applications

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  • ExxonMobil Chemical Library icon

    Synthetic lubricant base stocks formulation guide

    This convenient reference guide can provide a head start in helping you make the best choice of base stocks for a variety of lubricant applications.

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