Sodium dermatan sulfate
Time: 2013-06-02 05:16:47
Sodium dermatan sulfate
Synonyms
Dermatan, 4-(hydrogen sulfate), sodium salt;
Dermatan, hydrogen sulfate (ester) , sodium salt;
Category
Anionic Surfactant
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>> Sugar Sulfate
>> Polysaccharide Group Sulfate
>> Polysaccharide Sulfate
Chemical Numbering System
CASRN54328-33-5
EINECSN/A
Molecular Formula & Molecular Weight
Molecular Formula: N/A
Molecular Weight: N/A
Structure
Schematic formula:
Properties
Appearance    (1), white to slightly yellow powder.
Solubility    soluble in water.
Stability    stable in alkali, weak acid and hard water; unstable in strong acid, hydrolyzed.
Risk    Solid form: irritation, irritation to skin, eye.
GHS (Rev.6) label:  
Ecology    may be hazardous to environment. Water body should be given special attention.
Biodegradability    biodegradable.
Characteristics    excellent emulsifying, dispersing, film-forming, thickening abilities. Acidic mucopolysaccharide.
Synthesis
Natural source, found mostly in connective tissue and skin.
Quality Standards & Test Methods
1. Physical and chemical indexes
Item
Physical and chemical indexes
Actives, %, ≥
85.0
Loss on drying, %, ≤
10.0
Test Methods
(1), Actives
 
(2), Loss on drying
105°C, 4h.
2. Hazardous substances indexes
Item
Hazardous substances indexes
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. 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.
(c), Used in medicine, must comply with pharmacopoeia execution.
Major Uses
1. Typical applications
Use as dispersing agent, emulsifying agent.
Use as thickening agent.
2. Medicine
Use as pharmaceutical ingredient. (The contents of this section are for reference only and should be subject to pharmacopoeia.)
3. Personal care products
Conditioning agent in personal care products.
Manufacturers
 
Update: 20131022(1); 20170225(2);