Omnistab UV P

Omnistab UV  P is a phenol, 2-(2H-benzotriazol-2-yl)-4-methyl grade. Acts as a UV absorber. It belongs to the hydroxyphenyl benzotriazole class, imparting good light stability to a wide variety of polymers. Features strong absorption of ultraviolet radiation in 300-400 nm region. Exhibits high degree of photostability over long periods of light exposure. Provides ultraviolet protection in a wide variety of polymers including styrene homo- and copolymers, engineering plastics such as polyesters and acrylic resins, polyvinyl chloride, and other halogen containing polymers and copolymers (e. g. vinylidenes), acetals and cellulose esters. Also suitable for polycarbonate blends, polyurethanes, and epoxy materials. Use levels of Omnistab UV  P ranges between 0.1% and 0.5%, depending on substrate and performance requirements of the final application.

Product composition

  • CAS number(s): 2440-22-4
  • Chemical name(s): Phenol, 2-(2H-benzotriazol-2-yl)-4-methyl
  • Molecular formula: C13H11N3O
  • Molecular weight (g/mol): 225.25
  • EU (EG-No (EINECS/ELINCS)): 219-470-5


  • Content (%): 99.00 min
  • Melting point/range (ºC): 128.00 - 131.00
  • Volatiles (%): 0.50 max
  • Ash (%): 0.10 max
  • Transmittance 460 nm (%): 98.00 min
  • Transmittance 500 nm (%): 99.00 min
  • Product form(s): Crystal powder, Powder
  • Packaging option(s): Bag


In 2007 we decided to start ICG Specialty Chemicals selling specialty chemicals and additives under the tradename Omnistab.



Partners in Chemicals expanded its business in Middle East by setting up a branch office in Dubai in 2014.

Our Dubai office gives direct access to the Middle East and Africa. Having warehousing facility in the Dubai Free Zone makes it much easier to import, stock and re-export material to different destinations around the globe.




To serve the American market we have set up our Chicago branch office in 2009.



Deltachem (Qingdao) Co. Ltd. has been established in 2012 but general manager Mr. Mike Zou is already since 2007 a business partner for the Omnistab range.

Deltachem is the partner of Choice for Partners in Chemicals.

Besides being responsible for sourcing new products, supplychain and quality controle Deltachem is also managing the production facilities and handles the technical support.

Visit Deltachem