Acid orange 19

Acid orange 19
Names
	Other names Sodium 4-hydroxy-3-(2-(4-methyl-3-((phenylamino)sulfonyl)phenyl)diazenyl)-1-naphthalenesulfonate
Identifiers
CAS Number	3058-98-8;
3D model (JSmol)	Interactive image;
ChemSpider	4675590;
EC Number	221-298-0;
PubChem CID	135601373;
CompTox Dashboard (EPA)	DTXSID90883728;
	InChI InChI=1S/C23H19N3O6S2.Na/c1-15-11-12-17(13-21(15)33(28,29)26-16-7-3-2-4-8-16)24-25-20-14-22(34(30,31)32)18-9-5-6-10-19(18)23(20)27;/h2-14,26-27H,1H3,(H,30,31,32);/q;+1/p-1 Key: KKJOSHGDFRDDGD-UHFFFAOYSA-M;
	SMILES CC1=C(C=C(C=C1)N=NC2=C(C3=CC=CC=C3C(=C2)S(=O)(=O)[O-])O)S(=O)(=O)NC4=CC=CC=C4.[Na+];
Properties
Chemical formula	C23H18N3NaO6S2
Molar mass	519.52 g·mol−1
Hazards
	GHS labelling:
Hazard statements	H412
Precautionary statements	P273, P501
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Acid orange 19 is an azo dye that is used to color polyamide and wool fibers.^[1]

References

↑ Hunger, Klaus; Mischke, Peter; Rieper, Wolfgang; Raue, Roderich; Kunde, Klaus; Engel, Aloys (2005). "Azo Dyes". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a03_245. ISBN 978-3527306732.

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