uv-234- Tinuvin 234 Manufacturer info@www.additivesforpolymer.com

UV 234, Tiunvin 234, CAS 321-86-7

Chemical Name:


Formula C30H29N3O  UV 234 Tinuvin 234, cas 70321-86-7 chemical structure info@www.additivesforpolymer.com
Molecular Weight      447.5
CAS# 70321-86-7


Tinuvin 234,UV Absorber 234, Ultraviolet Absorber 234, UV Stabilizer 234


Appearance slightly yellow powder or granules
Melting point 137 – 141 °C
Flashpoint > 150°C
Solubility(20℃) Water < 0.01
MeoH < 0.1
EtoH 0.3
Acetone 2
Ch2Cl2 15
Hexane 0.6


>Features: Low Volatile Benzotriazole UV Absorber; high molecular weight.

>Tinuvin 234 exhibits high absorbance in the 300–400nm region and minimal absorbance in the visible region (> 400 nm) of the spectrum.

>Especially suited for polycarbonates, polyesters and other polymers usually processed at high temperatures. In polyolefins, it has a low volatility at high temperatures and high resistance to thermal degradation for polyolefin compounding and molding applications. It is especially suitable for applications of high surface area, such as films and fibers.

>UV 234 can be used alone or in combination with other additives (HALS, antioxidants).

>Use levels of UV 234 range between 0.15 and 0.60 %, depending on substrate and performance requirements of the final application.

Handing and Safety: 

>Tinuvin 234 exhibits a very low order of oral toxicity and does not present any abnormal problems in its handling or general use.

>For additional handing and toxicological information, please consult us for Maternal Safety Date Sheet.


25kg per fiber drum, 9*3 layer 27drum per pallet,or according to customers’ requirements.


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