40462
Red 2G
analytical standard
Synonym(s):
Acid Red 1, Amido Naphthol Red G, Azophloxine
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About This Item
Empirical Formula (Hill Notation):
C18H13N3Na2O8S2
CAS Number:
Molecular Weight:
509.42
NACRES:
NA.24
E Number:
E128
PubChem Substance ID:
UNSPSC Code:
85151701
EC Number:
223-098-9
MDL number:
Beilstein/REAXYS Number:
4121767
grade
analytical standard
Quality Level
assay
≥98.0% (HPLC)
technique(s)
HPLC: suitable, gas chromatography (GC): suitable
application(s)
cleaning products
cosmetics
food and beverages
personal care
format
neat
SMILES string
[Na+].[Na+].CC(=O)Nc1cc(cc2cc(c(\N=N\c3ccccc3)c(O)c12)S([O-])(=O)=O)S([O-])(=O)=O
InChI
1S/C18H15N3O8S2.2Na/c1-10(22)19-14-9-13(30(24,25)26)7-11-8-15(31(27,28)29)17(18(23)16(11)14)21-20-12-5-3-2-4-6-12;;/h2-9,23H,1H3,(H,19,22)(H,24,25,26)(H,27,28,29);;/q;2*+1/p-2/b21-20+;;
InChI key
WXLFIFHRGFOVCD-SERMZQFOSA-L
General description
Red 2G is a compound, which belongs to the azo family of dyes, generally used in textile industry.It can mainly find applications in non-linear optical studies.
This substance belongs to the class of azo dyes. Find here acomprehensive listing of all our food colorant reference materials.
Red 2G (E-128) is used for the quality control in food products. It belongs to the class of water-soluble synthetically prepared, food color additives, reportedly banned by the European and United states union. These synthetic food colors are commonly used to compensate for the loss of natural colors of food, destroyed during processing and storage. They also maintain and improve the color appearance in food products. E-128 is a mono azo dye, reported to cause increased iron deposition in the human kidney. It finds applications as a color additive in burger meat and sausages.
Red 2G (E-128) is used for the quality control in food products. It belongs to the class of water-soluble synthetically prepared, food color additives, reportedly banned by the European and United states union. These synthetic food colors are commonly used to compensate for the loss of natural colors of food, destroyed during processing and storage. They also maintain and improve the color appearance in food products. E-128 is a mono azo dye, reported to cause increased iron deposition in the human kidney. It finds applications as a color additive in burger meat and sausages.
Application
Red 2G may be used as an analytical reference standard for the quantification of the analyte in:
- Drinks and candies using reversed-phase high-performance liquid chromatography with photodiode array detection (RP-HPLC-PDA).
- Food products, beverages and water-soluble foods using reversed-phase high-performance liquid chromatography with diode array detection (RP-HPLC-DAD).
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.
Packaging
Bottomless glass bottle. Contents are inside inserted fused cone.
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
signalword
Warning
hcodes
Hazard Classifications
Skin Sens. 1B
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Find documentation for the products that you have recently purchased in the Document Library.
Investigation of optical limiting properties of Azophloxine dye using nanosecond Z-scan technique
Parvin M and Ahamed B
International Journal of ChemTech Research, 6(4), 2493-2498 (2014)
The effect of high-energy radiation on aqueous solution of Acid Red 1 textile dye
Foldvary.M.Cs and Wojnarovits.L
Radiation Physics and Chemistry, 76(8), 1485- 1488 (2007)
Determination of 13 synthetic food colorants in water-soluble foods by reversed-phase high-performance liquid chromatography coupled with diode-array detector
Minioti SK, et al.
Analytica Chimica Acta, 583(1), 103-110 (2007)
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 40462-25MG | 04061831986983 |