Antioxidant 626 Ultranox 626

Antioxidant 626, Ultranox 626, CAS 26741-53-7

Chemical Name:

Bis(2.4-di-t-butylphenyl) Pentaerythritol Diphosphite

Formula C33H50O6P2  
Molecular Weight 604
CAS# 26741-53-7

Synonym name:

ETHAPHO 326, Irgafos 126, Ultranox 626


Appearance White powder or granule
Ash Max.0.10%
Melting point 170.0-180.0℃
Solubility(20℃) Water <0.1
MeoH 2.1
EtoH U
Acetone 11
Ch2Cl2 34
Hexane 7.3


>Features: high performance solid organo-phosphite antioxidant.

>Solid phosphite antioxidant that provides color stability, reduces polymer degradation, and improves gas fading per­formance in many resins, better than antioxidant 168.

> antioxidant 626 may be used in polyethylene, polypropylene, polystyrene, polyesters, elastomers, PVC, and thermoplastics.

Handing and Safety: 

>Antioxidant 626 (ultranox 626) is Approved by the FDA for food contact applications under 21CFRl78.2010 covering antioxidants and/or stabilizers for poly­mers.

>For additional handing and toxicological information, please consult us for Maternal Safety Date Sheet.


Packed with plastic bag in composite plastic woven sack, Net 25kg/bag,1000kg/pallet, 10pallet/20’FCL,or according to customers’ requirements.


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