Benefos 1626


Benefos 1626 (26741-53-7) is a phosphite type antioxidant of high phosphorous content.  This secondary antioxidant provides excellent heat stability and reduction in polymer degradation during processing.  Benefos 1626 has good synergism when used with light stabilizers such as benzophenones and benzotriazoles.


Chemical Name:                     Bis(2,4-di-tert-butylphenyl) pentaerythritol diphosphite

CAS Number:                         26741-53-7

Chemical Structure:

Benefos 1626

Typical Properties         

Product Form:                       Solid

Melting Point:                        170 – 180oC

Molecular Weight:                  605 g/mol

Product Details:  Please view our Benefos 1626 PDF