Dilauryl thiodipropionate
Synonyms
Propanoic acid, 3,3'-thiobis-, didodecyl ester;
Didodecyl 3,3'-thiobispropionate;
Category
Non-ionic surfactant
> Ester
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Chemical Numbering System
CAS: 123-28-4
EINECS: 204-614-1
Molecular Formula & Molecular Weight
Molecular Formula: C30H58O4S
Molecular Weight: 514.84
Structure
Properties
Appearance (1), solid.
Solubility insoluble in water.
Stability stable. Under strong acid or strong alkali condition, easily hydrolyzed.
Risk Solid form: flammable material; irritation, irritation to skin, eye, respiratory system. Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.
GHS label: 
Animal Toxicity
Table 1 Animal toxicity values
|
mouse intraperitoneal LD50 |
> 2000mg/kg[1] |
|
mouse oral LD50 |
> 2000mg/kg[1] |
|
rat oral LD50 |
> 2500mg/kg[1] |
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent lubricating, dispersing, emulsifying, solubilizing abilities. Thioethers peroxide decomposing agent. Can react with peroxide and convert to sulfone compounds.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid |
|
|
Actives, %, ≥ |
95.0 |
Test Methods
(1), Actives
GB/T 13173 Surface active agents -- Detergents -- Testing methods
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Solid |
|
|
Heavy metals (as Pb), mg/kg, ≤ |
20 |
|
As, mg/kg, ≤ |
3 |
Test Methods
(1), Heavy metals (as Pb)
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30799 The test method of food detergents -- Determination of heavy metals
(2), As
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30797 The test method of food detergents -- Determination of total arsenic
3, Product standards
(1), Chinese standards
(1a), GB 1886.79 Food safety national standard -- Food additive -- Dilauryl thiodipropionate
4, Further explanation
(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.
(b), Used in cosmetics, should be test for harmful substances or furtherly test for microorganisms, according to local regulations and standards.
Major Uses
1, Typical applications
Use as antioxidant.
Use as sulfur-based extreme pressure lubricant.
Use as dispersing agent, emulsion stabilizer.
2, Personal care products
Antioxidant in personal care products.
3, Polymer
Use as antioxidant.
4, Food
Use as food additive (antioxidant).
Manufacturers
References
[1]: ChemIDplus. 123-28-4, Dilauryl thiodipropionate
Update: 20141031(1); 20200614(2);