Basic brown 4
Synonyms
1,3-Benzenediamine, 4,4'-((4-methyl-1,3-phenylene)bis(azo))bis(6-methyl-;
4,4'-((4-Methyl-1,3-phenylene)bis(azo))bis(6-methyl-1,3-benzenediamine);
CI 21010;
Category
Non-ionic surfactant
> Amine
>> Azo-group Amine
Chemical Numbering System
CASRN: 4482-25-1
EINECS: 224-764-1
Molecular Formula & Molecular Weight
Molecular Formula: C21H24N8
Molecular Weight: 388.47
Structure
Properties
Appearance (1), solid.
Solubility slightly soluble in water.
Stability stable.
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 (Rev.10) label: 
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent dyeing, masking, dispersing, antistatic abilities. Azo dyes.
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 dye.
Manufacturers