Basic Red 18

Basic Red 18
Names
Other names
Aizen Cathilon Red GTLH, Astrazon Red GTL
Identifiers
3D model (JSmol)
ChemSpider
EC Number
  • 237-946-0
UNII
  • 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
  • CCN(CC[N+](C)(C)C)C1=CC=C(C=C1)N=NC2=C(C=C(C=C2)[N+](=O)[O-])Cl
Properties
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:
GHS05: CorrosiveGHS07: Exclamation mark
Danger
H302, H318, H412
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).

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

  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.
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