Red 2G

SIAL/40462 - analytical standard

Synonym: Acid Red 1; Amido Naphthol Red G; Azophloxine

CAS Number: 3734-67-6
Empirical Formula (Hill Notation): C₁₈H₁₃N₃Na₂O₈S₂
Molecular Weight: 509.42
EC Number: 223-098-9
MDL Number: MFCD00003954
Linear Formula: C₁₈H₁₃N₃Na₂O₈S₂
Product Type: Chemical

Catalog Number	PKG Qty.	Price


45-40462-25MG	25 mg	$409.00 1/EA	Add To Favorites

This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 40462-25MG

Properties
Descriptions
Safety Info.
Basic Data

application(s)	cleaning products cosmetics food and beverages personal care
assay	≥98.0% (HPLC)
format	neat
grade	analytical standard
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
Quality Level	100
SMILES string	[Na+].[Na+].CC(=O)Nc1cc(cc2cc(c(N=Nc3ccccc3)c(O)c12)S([O-])(=O)=O)S([O-])(=O)=O
technique(s)	gas chromatography (GC): suitable
	HPLC: suitable

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).
Application:	Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.
General description:	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.
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.
Packaging:	Bottomless glass bottle. Contents are inside inserted fused cone.

RIDADR	NONH for all modes of transport
WGK Germany	WGK 3
Flash Point(F)	Not applicable
Flash Point(C)	Not applicable

Purity	≥98.0% (HPLC)
UNSPSC	85151701

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