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Tinuvin® PA 123

Technical Datasheet | Supplied by BASF
Tinuvin® PA 123 by BASF is decanedioic acid, bis(2,2,6,6-tetramethyl-1-(octyloxy)-4-piperidinyl)ester, reaction products with 1,1-dimethylethylhydroperoxide and octane. It is a low molecular weight hindered amine NOR stabilizer. Its low basicity is thus preventing possible interactions with acidic or other aggressive media. It is widely used to improve the weathering performance of a variety of polymers in a wide array of applications. Provides outstanding stabilization performance, especially under critical conditions when in contact with aggressive media including acids, flame retardants, sulfur, and catalyst residues. Its liquid form provides ease of handling and incorporation as well as dosing accuracy. Use levels of Tinuvin® PA 123 range between 0.05% and 2.0%.
Product Type
Light Stabilizers / UV Absorbers > HALS, Hindered Amines
Chemical Composition
Decanedioic acid, bis(2,2,6,6-tetramethyl-1-(octyloxy)-4-piperidinyl)ester, reaction products with 1,1-dimethylethylhydroperoxide and octane
CAS Number
Physical Form
Clear, Slightly yellow
Product Status
Applications/ Recommended for
  • PVC
  • TPE and TPV > TPO (or TPE-O)
  • UPR
  • PP
  • Polymer protection > Weatherability (UV, moisture, Oxygen...)
Food contact approval

Tinuvin® PA 123 Properties


Value & Unit
Test Condition
Test Method
Specific Gravity
0.97 g/cm3
(At 20°C)
2900 - 3100 mPa-s
(At 20°C)
< 0.01 %w/w
(At 20% in Water)

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