Name: Rianox RIANOX UV-329 Benzotriazole UV Absorber
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Rianox RIANOX UV-329 Benzotriazole UV Absorber

Highly effective UV absorption in the 280–380 nm range, providing robust protection against photodegradation.
Excellent thermal and hydrolytic stability, ensuring consistent performance during high-temperature processing and long-term service life.
Low volatility and minimal migration, maintaining UV protection integrity in demanding polymer matrices.
Good compatibility with a wide range of polymers including polyolefins, ABS, polycarbonate, and engineering thermoplastics.
Non-staining and colorless in final applications, preserving aesthetic quality of transparent or light-colored products.

Typical Applications Of Rianox RIANOX UV-329 Benzotriazole UV Absorber

Automotive interior and exterior plastic components (dashboards, trim, lamp housings).
Outdoor building materials such as PVC profiles, window frames, and cladding panels.
Packaging films and containers for UV-sensitive contents (e.g., pharmaceuticals, agrochemicals).
Consumer electronics housings requiring long-term gloss and color retention.
Coatings and inks for outdoor signage and decorative surfaces.

Chemical Type	Benzotriazole derivative
Product Form	Off-white to pale yellow crystalline powder
Appearance	Free-flowing crystalline solid
Molecular Formula	C₁₇H₁₃N₃O
Molecular Weight	279.3 g/mol
Melting Point	134–138 °C
Solubility (in Toluene)	~150 g/L at 25 °C
UV Absorption Max (λ_max)	342 nm (in ethanol)

Get in Touch with ERICW

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E-mail: wangxingqiang@ericwchem.com
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15921782326
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China