Basic Red 18

Basic Red 18
Names
	Other names Aizen Cathilon Red GTLH, Astrazon Red GTL
Identifiers
CAS Number	25198-22-5 ;
3D model (JSmol)	Interactive image;
ChemSpider	21160230;
EC Number	237-946-0;
PubChem CID	26457;
UNII	H5KZY0428H ;
CompTox Dashboard (EPA)	DTXSID50885288 ;
	InChI InChI=1S/C19H25ClN5O2/c1-5-23(12-13-25(2,3)4)16-8-6-15(7-9-16)21-22-19-11-10-17(24(26)27)14-18(19)20/h6-11,14H,5,12-13H2,1-4H3/q+1 Key: TZXATTMVGZDPHM-UHFFFAOYSA-N;
	SMILES CCN(CC[N+](C)(C)C)C1=CC=C(C=C1)N=NC2=C(C=C(C=C2)[N+](=O)[O-])Cl;
Properties
Chemical formula	C19H25Cl2N5O2
Molar mass	426.34 g·mol−1
Appearance	dark red solid
Melting point	45.5–46.5 °C (113.9–115.7 °F; 318.6–319.6 K)
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H302, H318, H412
Precautionary statements	P264, P270, P273, P280, P301+P312, P305+P351+P338, P310, P330, P501
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Basic Red 18 is a cationic azo dye used for coloring textiles. The chromophore is the cation, which contains many functional groups, but most prominently the quaternary ammonium center.

It is produced by azo coupling of 2-chloro-4-nitrophenyldiazonium cation with the quaternary ammonium salt derived from N-ethyl-N-(2-chloroethyl)aniline and trimethylamine.^[1]

Like many dyes, methods for the removal of Basic Red 18 from waste streams has received much attention.^[2]

References

↑ Klaus Hunger; Peter Mischke; Wolfgang Rieper; et al. (2005). "Azo Dyes". Ullmann’s Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a03_245. ISBN 3527306730..
↑ B.Noroozi; G. A.Sorial; H.Bahrami; M.Arami (2008). "Adsorption of binary mixtures of cationic dyes". Dyes and Pigments. 76 (3): 784–791. doi:10.1016/j.dyepig.2007.02.003.

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[Azodye-1] Klaus Hunger; Peter Mischke; Wolfgang Rieper; et al. (2005). "Azo Dyes". Ullmann’s Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a03_245. ISBN 3527306730..

[2] B.Noroozi; G. A.Sorial; H.Bahrami; M.Arami (2008). "Adsorption of binary mixtures of cationic dyes". Dyes and Pigments. 76 (3): 784–791. doi:10.1016/j.dyepig.2007.02.003.

[1]

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Basic Red 18

References