Basic red 18
Synonyms
C.I. 11085;
Ethanaminium, 2-((4-(2-(2-chloro-4-nitrophenyl)diazenyl)phenyl)ethylamino)-N,N,N-trimethyl-, chloride (1:1);
Category
Cationic surfactant
> Quaternary Ammonium Salt
>> Azo-group Quaternary Ammonium Salt
Chemical Numbering System
CAS: 25198-22-5
EINECS: 246-730-5
Molecular Formula & Molecular Weight
Molecular Formula: C19H25Cl2N5O2; C19H25Cl1N5O2.Cl
Molecular Weight: 426.34
Structure
Properties
Appearance (1), solid.
Solubility soluble in water.
Stability stable.
Risk Solid form: irritation, irritation to skin, eye, respiratory system.
GHS label: 
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent masking, dyeing, antistatic, emulsifying, dispersing abilities.
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
Update: 20190602(1);