Specialty Additives Available — Bulk Only

sec-Hexadecylnaphthalene (Alkylated Naphthalene)

CAS 94247-63-9 · Formula C26H40 · MW 352.6 g/mol

An alkyl-aromatic base fluid built on a naphthalene core for thermally demanding synthetic lubricant blends. Alkylated naphthalenes of this type are used as synthetic lubricant base fluids.

Request SDS
HS Code
2902.90
At a Glance
Material Family
Specialty Additives
Record Type
Pure compound
Primary Role
Lubrication · Solvency
Functional Roles
Applications & Use Cases
  • Synthetic base fluid: Alkylated-naphthalene base stock for formulated synthetic lubricants.
  • Cyclic hydrocarbon intermediate: Alkyl-aromatic feedstock for further synthesis.
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

Request SDS →
HS / Tariff Classification
Harmonized System (HS) Code — 6-digit international heading
2902 . 90
Chapter 29
Organic chemicals
Heading 29.02
Internationally harmonized (WCO HS)
Subheading 2902.90
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
94247-63-9
Molecular Formula
C26H40
Molecular Weight
352.6 g/mol
IUPAC Name
1-hexadecan-2-ylnaphthalene
PubChem CID
InChI Key
YRKSLYAWOBZISP-UHFFFAOYSA-N
Synonyms & Trade Names
1-sec-Hexadecylnaphthalene Naphthalene, 1-(1-methylpentadecyl)- sec-Hexadecylnaphthalene Naphthalene, sec-hexadecyl- 1-(hexadecan-2-yl)naphthalene
Full Description

sec-Hexadecylnaphthalene (CAS 94247-63-9) is a long-chain alkyl-substituted naphthalene, molecular formula C26H40, in the alkylated-naphthalene class of cyclic hydrocarbons. Alkylated naphthalenes of this type are used as synthetic lubricant base fluids.

Frequently Asked Questions

What is sec-hexadecylnaphthalene used for?

sec-Hexadecylnaphthalene (CAS 94247-63-9) is a long-chain alkyl-substituted naphthalene used primarily as a synthetic lubricant base fluid. Alkylated naphthalenes of this class serve as base stock for formulated synthetic lubricants and as an alkyl-aromatic intermediate for further synthesis.

What is the common name for naphthalene?

Naphthalene (C10H8) is the parent fused-ring aromatic; sec-hexadecylnaphthalene is the alkylated derivative carrying a C16 sec-hexadecyl chain on the naphthalene ring. The molecular formula of sec-hexadecylnaphthalene is C26H40, placing it in the cyclic-hydrocarbon class.

What is the molecular formula of sec-hexadecylnaphthalene?

The molecular formula is C26H40 (CAS 94247-63-9). It is a cyclic hydrocarbon consisting of a naphthalene core substituted with a secondary hexadecyl (C16) alkyl group.

What is the HS code for sec-hexadecylnaphthalene?

It classifies under HS 2902.90 (Cyclic hydrocarbons: Other). Confirm the destination-country tariff line with your customs broker, as national subheadings can extend beyond the six-digit HS code.

Can sec-hexadecylnaphthalene be supplied in bulk?

Yes. RawSource supplies sec-hexadecylnaphthalene in drum, tote, and IBC quantities to manufacturers and lubricant formulators. Request a bulk quote with your target volume and packaging, and a CoA and SDS are available on request.

Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.