Solvents - Aliphatic Available — Bulk Only

Polyalphaolefin (PAO)

PAO
CAS 68037-01-4

A synthetic hydrocarbon base oil used in engine oils, gear oils, hydraulic fluids, and industrial lubricants.

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HS Code
3902.90
At a Glance
Material Family
Solvents - Aliphatic
Record Type
UVCB
Primary Role
Lubrication · Emolliency
Functional Roles
HYDROGENATED POLYDECENE
FRAGRANCEHAIR CONDITIONINGPERFUMINGSKIN CONDITIONINGSKIN CONDITIONING - EMOLLIENTSOLVENT
Industries Served
Applications & Use Cases
  • Synthetic lubricants: Base oil for engine, gear, and industrial oils.
  • Greases: Base fluid for synthetic greases.
  • Compressor and hydraulic fluids: Base stock for compressor and hydraulic oils.
  • Viscosity control: Functions as a viscosity modifier in lubricants.
Physical Properties
Appearance
Clear colorless liquid (typical)
Kinematic Viscosity 100C
2-10 cSt (typical, grade-dependent)
Viscosity Index
120-140 (typical)
Pour Point
below -50 C (typical)
Flash Point
above 150 C (typical, grade-dependent)
Density 15C
0.80-0.84 g/cm3 (typical)
Water Solubility
Insoluble (typical)
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.

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HS / Tariff Classification
Harmonized System (HS) Code — 6-digit international heading
3902 . 90
Chapter 39
Plastics and articles thereof
Heading 39.02
Internationally harmonized (WCO HS)
Subheading 3902.90
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
68037-01-4
INCI Name
HYDROGENATED POLYDECENE
Synonyms & Trade Names
Poly(1-decene), hydrogenated Decene homopolymer, hydrogenated Hydrogenated poly-1-decene PAO base fluid Synthetic hydrocarbon base oil 1-Decene-based polyalphaolefin
Full Description

Polyalphaolefin (CAS 68037-01-4) is a synthetic hydrocarbon base fluid produced by oligomerizing alpha-olefins. It is used as a synthetic base oil for lubricants, including engine oils, gear oils, greases, and compressor and hydraulic fluids.

Regulatory & registration requirements

  • TSCA (US):
  • REACH (EU):
  • EC number: 500-183-1

TSCA Inventory flag XU: a substance exempt from reporting under the Chemical Data Reporting Rule (40 CFR 711) (EPA flag legend).

Source: EPA TSCA Inventory (July 2025 release) · ECHA CHEM — retrieved 2026-07-12

Solutions Using This Product

Process-solution guides on this site that specify this chemistry:

Frequently Asked Questions

What is polyalphaolefin used for?

Polyalphaolefin (PAO, CAS 68037-01-4) is a synthetic hydrocarbon base fluid used as a synthetic base oil for lubricants — including engine oils, gear oils, greases, and compressor and hydraulic fluids — and as a viscosity modifier. RawSource supplies it as an industrial base stock.

How is polyalphaolefin made?

PAO is produced by oligomerizing alpha-olefins (linking short olefin molecules into longer synthetic hydrocarbon chains), then hydrogenating the product to form a stable synthetic base fluid. CAS is 68037-01-4, HS code 3902.90.

What grades of PAO does RawSource supply?

PAO base fluids are graded by viscosity (commonly designated by their approximate kinematic viscosity in cSt at 100°C). Specify your target viscosity grade and application so the right base stock can be matched, and request the CoA.

How is PAO packaged for bulk supply?

RawSource supplies PAO base fluid in drums, IBC totes, and bulk by viscosity grade. Confirm grade and packaging with your rep, and request the SDS and CoA for documentation.

What is the cost of bulk polyalphaolefin?

Bulk PAO pricing depends on viscosity grade, packaging, and volume. RawSource quotes drum, tote, and bulk loads — request a current quote with your target grade and quantity.

What is the REACH and TSCA regulatory status of Polyalphaolefin (PAO)?

Polyalphaolefin (PAO) (CAS 68037-01-4) is subject to U.S. TSCA Inventory requirements; supplying it into the EU requires valid REACH registration ((EC) No 1907/2006). RawSource cannot verify a third-party supplier's registrations — buyers should require documented TSCA and REACH compliance for their jurisdiction and volume (EC 500-183-1).

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.