Cystamine dihydrochloride
Synonyms
Cystamine HCl;
Ethanamine, 2,2'-dithiobis-, dihydrochloride;
Category
Non-ionic surfactant
> Amine
>> Ether-group Amine
>>> Ether-group Chain Amine
>>>> Thia Fatty Diamine
Chemical Numbering System
CAS: 56-17-7
EINECS: 200-260-7
Molecular Formula & Molecular Weight
Molecular Formula: C4H14Cl2N2O2; C4H12N2S2.2HCl
Molecular Weight: 225.20
Structure
Properties
Appearance (1), solid.
Solubility soluble in water.
Stability stable.
Risk Solid form: flammable material; irritation, irritation to skin, eye, respiratory system. Harmful products of combustion are CO, CO2, nitrogen oxides and so on. Contact with strong oxidants, can cause to burn.
GHS label: 
Animal Toxicity
Table 1 Animal toxicity values
|
cat subcutaneous LDLo |
200mg/kg[1] |
|
guinea pig subcutaneous LDLo |
300mg/kg[1] |
|
mouse intraperitoneal LD50 |
405mg/kg[1] |
|
mouse oral LD50 |
874mg/kg[1] |
|
rat oral LD50 |
896mg/kg[1] |
|
rat subcutaneous LDLo |
200mg/kg[1] |
Reproductive effect[1].
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent dispersing, emulsifying, anti-infective, antistatic abilities. Under acidic condition, formaldehyde is released slowly.
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, Further explanation
(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.
Major Uses
1, Typical applications
Use as dispersing agent, emulsion stabilizer.
Use as radiation-protective agent.
Manufacturers
References
[1]: ChemIDplus. 56-17-7, Cystamine dihydrochloride
Update: 20200822(1);