Omnistab LS 4050

Omnistab LS 4050 is N,N’-bis(2,2,6,6-tetramethyl-4-piperidyl)-N,N’-diformylhexamethylenediamine. It is a low molecular weight hindered amine light stabilizer (HALS) for applications demanding particularly high light stability. It provides excellent light stability for thick sections but can also be used for articles with a high surface area such as films and tapes. It is recommended to be used in polystyrene, impact polystyrene, ABS, SAN, ASA, polypropylene, impact modified PP (TPO), EPDM, and in polyamides. Due to its low volatility, Omnistab LS 4050 is unique for high temperature processes compared to other low molecular weight HALS. A special benefit of using Omnistab UV 4050 is the high light-stabilizing performance, particularly for styrenic polymers and PP to protect the surface. It has broad compatibility and can be easily dispersed. Omnistab UV 4050 can be used in plastic articles in contact with food. The recommended concentrations range between 0.1% and 0.5%, depending on the substrate, processing conditions and application.

Product composition

  • CAS number(s): 124172-53-8
  • Chemical name(s): N,N'-bis(2,2,6,6-tetramethyl-4-piperidyl)-N,N'-diformylhexamethylenediamine
  • Molecular formula: C26H50N4O2
  • Molecular weight (g/mol): 450.70
  • EU (EG-No (EINECS/ELINCS)): 413-610-0


  • Content (%): 99.00 min
  • Volatiles (%): 0.50 max
  • Melting point/range (ºC): 155 - 158
  • Product form(s): Powder
  • Packaging option(s):


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.

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