Orange GGN

Structural formula
General
Surname	Orange GGN
other names	Disodium 6-hydroxy-5 - [( E ) - (3-sulfonatophenyl) diazenyl] -2-naphthalene sulfonate ( IUPAC ); CI Food Orange 2; CI 15980; α-naphthol orange; E 111;
Molecular formula	C 16 H 10 N 2 Na 2 O 7 S 2
Brief description	orange crystalline solid
External identifiers / databases
EC number	219-073-7
ECHA InfoCard	100.017.340
PubChem	16868
ChemSpider	20152418
Wikidata	Q929052
properties
Molar mass	452.36 g mol −1
Physical state	firmly
solubility	soluble in water; slightly soluble in ethanol ;
safety instructions
GHS hazard labeling ; no classification available
GHS hazard labeling ; no classification available
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Orange GGN , also known as α-naphthol orange , is a bright orange azo dye that was previously used as a food coloring to color beverages, canned fish, waffles and artificial honey .

The substance is the disodium salt of 5- (3-sulfo-1-phenylazo) -6-hydroxynaphthalene-2-sulfonic acid . In Europe it was designated with the E number E 111, but its use in food has been prohibited in the European Union since January 1, 1978. It was never included on the Codex Alimentarius list of food additives .

The separation of other dyes, e.g. E 110 , and the determination in food samples is possible after ion pair formation by means of reversed-phase HPLC .

Extraction and presentation

Orange GGN can be produced by diazotizing 3-aminobenzenesulfonic acid and then coupling with 2-naphthol-6-sulfonic acid in an alkaline solution.

Individual evidence

↑ ^a ^b ^c Müfit Bahadir, Harun Parlar, Michael Spiteller: Springer Umweltlexikon , Springer Verlag, Berlin, Heidelberg, New York, ISBN 978-3642973369 , p. 744.
↑ External identifiers of or database links to Orange GGN, free acid : CAS number: 23222-15-3, EC number: 607-210-7, ECHA InfoCard: 100.109.751 , PubChem : 16869 , ChemSpider : 23350404 , Wikidata : Q75838399 .
↑ ^a ^b Gisbert Otterstätter: Coloring of Food, Drugs, and Cosmetics . CRC Press, 1999, ISBN 978-0-8247-0215-1 , pp. 148 ( books.google.de ).
↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
↑ Kurt Aitzetmüller, Erika Arzberger: Analysis of food dyes E 110, E 111, and E 124 in fish samples by ion pair partition HPLC. In: Journal of Food Study and Research. 169, 1979, pp. 335-338, doi : 10.1007 / BF01127002 .
^ PH List, L. Hörhammer (Ed.): Hager's Handbook of Pharmaceutical Practice: For pharmacists, drug manufacturers, doctors and medical officials: Active ingredient groups II, chemicals and drugs (A-AL) . 4th edition. Springer-Verlag, Berlin, Heidelberg 1969, ISBN 978-3-662-25655-8 , pp. 34 ( limited preview in Google Book search).

[Springer-1] Müfit Bahadir, Harun Parlar, Michael Spiteller: Springer Umweltlexikon , Springer Verlag, Berlin, Heidelberg, New York, ISBN 978-3642973369 , p. 744.

[2] External identifiers of or database links to Orange GGN, free acid : CAS number: 23222-15-3, EC number: 607-210-7, ECHA InfoCard: 100.109.751 , PubChem : 16869 , ChemSpider : 23350404 , Wikidata : Q75838399 .

[Gisbert_Otterstätter-3] Gisbert Otterstätter: Coloring of Food, Drugs, and Cosmetics . CRC Press, 1999, ISBN 978-0-8247-0215-1 , pp. 148 ( books.google.de ).

[NV-4] This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.

[Kaitze-5] Kurt Aitzetmüller, Erika Arzberger: Analysis of food dyes E 110, E 111, and E 124 in fish samples by ion pair partition HPLC. In: Journal of Food Study and Research. 169, 1979, pp. 335-338, doi : 10.1007 / BF01127002 .

[6] PH List, L. Hörhammer (Ed.): Hager's Handbook of Pharmaceutical Practice: For pharmacists, drug manufacturers, doctors and medical officials: Active ingredient groups II, chemicals and drugs (A-AL) . 4th edition. Springer-Verlag, Berlin, Heidelberg 1969, ISBN 978-3-662-25655-8 , pp. 34 ( limited preview in Google Book search).