Methylthymol blue pentasodium salt
Synonyms
Glycine, N-((3-((3-((bis(carboxymethyl)amino)methyl)-4-hydroxy-2-methyl-5-(1-methylethyl)phenyl)(2-sulfophenyl)methylene)-2-methyl-5-(1-methylethyl)-6-oxo-1,4-cyclohex adien-1-yl)methyl)-N-(carboxymethyl)-, pentasodium salt;
Category
Zwitterionic Surfactant
> Sulfonate Type
>> Triarylmethane Dye
Chemical Numbering System
CAS: 4310-80-9
EINECS: N/A
Molecular Formula & Molecular Weight
Molecular Formula: C37H39N2Na5O13S; C37H44N2O13S.5Na
Molecular Weight: 866.73
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: 
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent antistatic, masking, dyeing 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 indicator.
Manufacturers
Update: 20190707(1);