Antioxidant DSTDP

Basic Information
Place of Origin: China
Minimum Order Quantity: 50KG

Antioxidant LP-DSTDP

Chemical Name: Distearyl3,3-thiodipropionate

Name of Foreign Counterpart: PS802,DSTP

CAS NO: 693-36-7 Molecular Weight: M=682

Molecular Formula: C42H82O4S

Chemical Structure Formula:


Quality Standard:


Control Items Unit  
Appearance -- White Powder or semi-bead
Volatility WT% £0.5
Melting Point 63.5—68.5
Color Pt-Co,No £50
Acid Value mgKOH/g £0.1
Ash WT% £0.01
Assay WT% ³99.0














As a kind of excellent sulfur ester assistant antioxidant,it offers better effect than DLTDP, especially for PP and HDPE. Usually they are used with phenolic antioxidants so as to strengthen aging, light stabilities and improve the initial color and luster. In addition, it doesn't cause pollution and pigmentation.

Storage & Transportation:

Stable in property. No requirement but keep away from damp or heat.


Cardboard boxeswith plastic liners, net weight: 20Kg/box.


Contact Details

Phone Number : +86-21-80181916

WhatsApp : +8618516375790