Omnistab UV 571

Omnistab UV 571 is a liquid benzotriazole UV absorber. Imparts good light stability to a variety of polymers. Features high compatibility in various substrates, low volatility even at elevated temperatures, and high absorption and protection efficiency. Highly soluble in many solvents, monomers, or intermediates and easily emulsifiable in water-based adhesives. It can be considered for use during polymerization as well as for topical applications on PVC sheets Suitable for thermoplastic PUR, coating and integral foams, rigid and plasticized PVC, PVB, PMMA, PVDC, EVOH, EVA, hot cured unsaturated polyesters and spin finishes for PA, PET, PUR, and PP fibers. Also suitable for styrene homo- and copolymers, elastomers and polyolefins. Use levels of Omnistab UV 571 ranges between 0.2-5.0%, depending on substrate and performance requirements of the final application.

Product composition

  • CAS number(s): 125304-04-3
  • Chemical name(s): 2-(2H-Benzothiazol-2-yl)-6-(dodecyl)-4-methylphenol
  • Molecular formula: C25H35N3O
  • Molecular weight (g/mol): 393.56
  • EU (EG-No (EINECS/ELINCS)): 603-051-2


  • Content (%): 95.00 min
  • Volatiles (%): 0.20 max
  • Color Gardener (%): 8.00 max
  • Transmittance 450 nm (%): 90.00 min
  • Transmittance 500 nm (%): 95.00 min
  • Product form(s): Liquid
  • Packaging option(s): Can, Drum


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