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Rot 2G

analytical standard

Synonym(e):

Azophloxin, 5-Acetamino-4-hydroxy-3-phenylazo-2,7-naphthalindisulfonsäure Dinatriumsalz, Amido Naphthol Rot G, Säurerot 1

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About This Item

Empirische Formel (Hill-System):
C18H13N3Na2O8S2
CAS-Nummer:
3734-67-6
Molekulargewicht:
509.42
Beilstein:
4121767
EG-Nummer:
223-098-9
MDL-Nummer:
MFCD00003954
UNSPSC-Code:
85151701
PubChem Substanz-ID:
329755991
E-Nummer:
E128
NACRES:
NA.24

Qualität

analytical standard

Qualitätsniveau

100

Assay

≥98.0% (HPLC)

Methode(n)

HPLC: suitable
gas chromatography (GC): suitable

Anwendung(en)

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+;;

InChIKey

WXLFIFHRGFOVCD-SERMZQFOSA-L

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Verwandte Kategorien

Allgemeine Beschreibung

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 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.

Anwendung

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.

Verpackung

Bottomless glass bottle. Contents are inside inserted fused cone.

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Choose from one of the most recent versions:

Analysenzertifikate (COA)

Lot/Batch Number

Sorry, we don't have COAs for this product available online at this time.

If you need assistance, please contact Kundensupport

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An analysis of the possibility for health implications of joint actions and interactions between food additives
Groten PJ, et al.
Regulatory Toxicology and Pharmacology, 31(1), 77-91 (2000)
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)
Food Analysis by HPLC (2012)
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