Food Red 17
Synonyms
CI 16035;
Curry red;
Red 40;
2-Naphthalenesulfonic acid, 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfophenyl)azo)-, disodium salt;
Category
Zwitterionic Surfactant
> Sulfonate Type
>> Azo Dye
Chemical Numbering System
CASRN: 25956-17-6
EINECS: 247-368-0
Molecular Formula & Molecular Weight
Molecular Formula: C18H14N2Na2O8S2; C18H16N2O8S2.2Na
Molecular Weight: 496.42
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 and so on. Contact with strong oxidants, can cause to burn.
GHS (Rev.9) label: 
Animal Toxicity
Table 1 Animal toxicity values
|
dog oral LD50 |
> 5000mg/kg[1] |
|
rabbit skin LD50 |
> 10000mg/kg[1] |
|
rat oral LD50 |
> 10000mg/kg[1] |
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent masking, dyeing abilities.
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.
(b), Used in cosmetics, should be test for harmful substances or furtherly test for microorganisms, according to local regulations and standards.
Major Uses
1, Typical Applications
Use as dye.
2, Personal care products
Colorant in personal care products.
Hair dyeing agent in personal care products.
Further information:
(1), In accordance with Safety and Technical Standards for Cosmetics (2015 Edition) of China, be included in the allowable colorants.
Can be applied to all kind of products.
In the raw materials, the limited substances are as follows:
6-Hydroxy-2-naphthalene sulfonic acid, sodium salt: <= 0.3%;
4-Amino-5-methoxy-2-methylbenezene sulfonic acid: <= 0.2%;
6,6'-Oxydi(2-naphthalene sulfonic acid)disodium salt: <= 1.0%;
Unsulfonated aromatic primary amine (as aniline): <= 0.01%.
(2), In accordance with EU regulations (EC) 2009/1223, directive 88/667/EEC, be included in Annex IV/32.
(3), In accordance with EU regulations (EC) 2013/344, be included in Annex III/191.
Can be applied to:
Non-oxidative hair dye products: Maximum concentration is 0.4%.
Manufacturers
References
[1]: ChemIDplus. 25956-17-6, C.I. Food Red 17
