BNX 2777


BNX 2777 (40601-76-1 & 31570-04-4) is a primary and secondary antioxidant blend using an phenolic antioxidant (BNX 1790) and a phosphite type antioxidant (Benefos 1680).  The primary antioxidant provides superior polymer stabilization and has excellent compatibility with polymeric HALS’s and UVA’s.  The secondary antioxidant provides excellent heat stability and antioxidation, with good compatibility with resins and excellent extraction resistance.


Chemical Name:            BNX 1790:               1,3,5-Tris (4-tert-butyl-3-hydroxy-2,6-dimethyl


Benefos 1680:          Tris (2,4-di-tert-butylphenyl) phosphite

CAS Number:                  BNX 1790:               40601-76-1

Benefos 1680:          31570-04-4

Chemical Structure:

BNX 1790:                                                                Benefos 1680:

BNX 1790Benefos 1680

Typical Properties         

Product Form:                   Solid

Melting Point:                    BNX 1790:               159-163oC

   Benefos 1680:         183-187oC

Molecular Weight:             BNX 1790:                699

   Benefos 1680:          647

Product Details: Please view our BNX 2777  PDF