Orange GGN

Orange GGN
Names
	Other names 1-(m-Sulfophenylazo)-2-naphthol-6-sulfonic acid, disodium salt;
Identifiers
CAS Number	2347-72-0 ;
3D model ( JSmol)	Interactive image;
ChemSpider	20152418 ;
ECHA InfoCard	100.017.340
E number	E111 (colours)
PubChem CID	16868;
UNII	35HF83708U;
CompTox Dashboard (EPA)	DTXSID90893685;
	InChI InChI=1S/C16H12N2O7S2.2Na/c19-15-7-4-10-8-13(27(23,24)25)5-6-14(10)16(15)18-17-11-2-1-3-12(9-11)26(20,21)22;;/h1-9,19H,(H,20,21,22)(H,23,24,25);;/q;2+1/p-2/b18-17+;; Key: CECHAJXICNIUQL-QIKYXUGXSA-L ; InChI=1/C16H12N2O7S2.2Na/c19-15-7-4-10-8-13(27(23,24)25)5-6-14(10)16(15)18-17-11-2-1-3-12(9-11)26(20,21)22;;/h1-9,19H,(H,20,21,22)(H,23,24,25);;/q;2+1/p-2/b18-17+;; Key: CECHAJXICNIUQL-JLAJEUQUBK;
	SMILES [Na+].[Na+].[O-]S(=O)(=O)c1cccc(c1)/N=N/c2c3ccc(cc3ccc2O)S([O-])(=O)=O;
Properties
Chemical formula	C16H10N2Na2O7S2
Molar mass	452.36 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Orange GGN, also known as alpha-naphthol orange, is an

E Number E111, but has been forbidden for use in foods since 1 January 1978.^[2] It has never been included in the food additives list of the Codex Alimentarius. As such, it is forbidden for food use in general, because toxicological data has shown it is harmful.^{[citation needed}

]

The

IR spectra

.

References

^ "Orange GGN".
^ EU directive 76/399/EEC

[1] "Orange GGN".

[2] EU directive 76/399/EEC

[2]