3,6-Diamino-9-(2-(methoxycarbonyl)phenyl)xanthylium chloride
Synonyms
Rhodamine 123;
Benzoic acid, 2-(6-amino-3-imino-3H-xanthen-9-yl)-, methyl ester, monohydrochloride;
Category
Cationic surfactant
> Pyrylium Salt
>> Dibenzopyranium Salt
Chemical Numbering System
CAS: 62669-70-9
EINECS: 263-687-8
Molecular Formula & Molecular Weight
Molecular Formula: C21H17ClN2O3; C21H17N2O3.Cl
Molecular Weight: 380.82
Structure
Properties
Appearance (1), solid.
Solubility soluble in water. Soluble in ethanol.
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 label: 
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent masking, coloring, antistatic abilities. Xanthene dyes. Fluorescence dye.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid |
|
|
Actives, %, ≥ |
85.0 |
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