Tris(2,4-di-tert-butylphenyl) Phosphite

Compound description

Affygility Solutions has an occupational exposure limit (OEL) and control band assignment for this active pharmaceutical ingredient (API). This monograph also contains the acceptable daily exposure (ADE) value.

Tris(2,4-di-tert-butylphenyl) Phosphite

CAS Registry Number:
Irgafos® 168, Alkanox 240®
Trade names:
Please note, this OEL/ADE monograph also applies to Tris(2,4-ditertbutylphenyl) phosphate (CAS RN 95906-11-9). Tris(2,4-di-tert-butylphenyl) phosphite (also known as phosphorous acid, tris (2,4-di-tertbutylphenyl) ester) is a hydrolytically stable organo-phosphite processing stabilizer. As a secondary antioxidant, it reacts during processing with hydroperoxides formed by auto-oxidation of polymers preventing process induced degradation and extending the performance of primary antioxidants. Tris(2,4-di-tert-butylphenyl) phosphite is approved for polymeric indirect food contact applications (FCA). It is also recommended for applications such as solvent-based coatings, hot-melt and construction adhesives and coatings (4). The application range of tris(2,4-di-tert-butylphenyl) phosphite, synergistically combined with other antioxidants, comprises polyolefins and olefin copolymers such as polyethylene, polypropylene, polybutene and ethylene vinyl acetate copolymers as well as polycarbonates and polyamides.
$679 USD


Why do you need this OEL Fastrac monograph?

OEL Fastrac monographs are a cost-effective and convenient way to meet the requirements for PDEs (ADEs) contained in the EMA Guideline on setting health based exposure limits for use in risk identification in the manufacture of different medicinal products in shared facilities (EMA/CHMP/CVMP/SWP/169430/2012), as well as PIC/S and ANVISA requirements, and to obtain the following information:

  • The numerical OEL and control band assignment needed to determine the level of required engineering controls and personal protective equipment
  • A listing of all cited references utilized in the derivation of the OEL and ADE
  • An expert review and discussion with respect to the critical endpoints of concern, the rationale for the choice of endpoints, and dose that is to be used in the derivation of the ADE (PDE), as required by the EMA's Guideline on setting health-based exposure limits for use in risk identification in the manufacture of different medicinal products in shared facilities

Benefits of OEL Fastrac monographs

  • Fully documented. Over 20 pages in length, with calculations and cited references.
  • Save time! Unsurpassed delivery with instant download.
  • Save money. Similar documents cost 5-12 times as much.
  • Stay current. Automatic notification of revisions.

How to order

To order an OEL/ADE monograph for Tris(2,4-di-tert-butylphenyl) Phosphite, just click the ADD TO CART button.


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  • K. Rosenthal
  • Director of Manufacturing