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Direct Blue 1

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Direct Blue 1
Names
IUPAC name tetrasodium (6E)-4-amino-6--3-methoxy-phenyl]-2-methoxy-phenyl]hydrazono]-5-oxo-naphthalene-1,3-disulfonate
Other names Airedale Blue FFD,

Amanil Sky Blue 6B, Amanil Sky Blue FF,

Atlantic Resin Fast Blue
Identifiers
CAS Number
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.018.207 Edit this at Wikidata
PubChem CID
UNII
CompTox Dashboard (EPA)
InChI
  • InChI=1S/C34H28N6O16S4.4Na/c1-55-23-11-15(3-7-19(23)37-39-21-9-5-17-25(57(43,44)45)13-27(59(49,50)51)31(35)29(17)33(21)41)16-4-8-20(24(12-16)56-2)38-40-22-10-6-18-26(58(46,47)48)14-28(60(52,53)54)32(36)30(18)34(22)42;;;;/h3-14,37-38H,35-36H2,1-2H3,(H,43,44,45)(H,46,47,48)(H,49,50,51)(H,52,53,54);;;;/q;4*+1/p-4/b39-21-,40-22+;;;;Key: UPKAWFACSJWKND-ZXFFUEEESA-J
SMILES
  • ....S(=O)(=O)c6c5\C=C/C(=N/Nc1ccc(cc1OC)c2ccc(c(OC)c2)N/N=C4\C=C/c3c(cc(c(N)c3C4=O)S()(=O)=O)S()(=O)=O)C(=O)c5c(N)c(c6)S()(=O)=O
Properties
Chemical formula C34H24N6Na4O16S4
Molar mass 992.804
Appearance Amorphous, fine blue powder.
Hazards
Occupational safety and health (OHS/OSH):
Main hazards Xn
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). ☒N verify (what is  ?) Infobox references
Chemical compound

Direct Blue 1 is an organic compound that is one of many azo dyes. This salt is used as a substantive dye for textiles with high contents of cellulose, i.e. cotton. It is prepared by the azo coupling of the aminonaphthalene and diazotized derivative of o-dianisidine.

References

  1. Dye at "Chemical Book"
  2. Klaus Hunger, Peter Mischke, Wolfgang Rieper, Roderich Raue, Klaus Kunde, Aloys Engel: "Azo Dyes" in Ullmann's Encyclopedia of Industrial Chemistry, 2005, Wiley-VCH, Weinheim.doi:10.1002/14356007.a03_245.


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