{{Chembox | Verifiedfields = changed | verifiedrevid = 450720938 | ImageFile = Pontamine sky blue.svg | ImageSize = 300px |IUPACName=tetrasodium (6''E'')-4-amino-6-<nowiki>[[</nowiki>4-[4-[''{{prime|N}}''-(8-amino-1-oxo-5,7-disulfonato-2-naphthylidene)hydrazino]-3-methoxy-phenyl]-2-methoxy-phenyl]hydrazono]-5-oxo-naphthalene-1,3-disulfonate |OtherNames= Airedale Blue FFD, Amanil Sky Blue 6B, Amanil Sky Blue FF, Atlantic Resin Fast Blue |Section1= {{Chembox Identifiers | CASNo_Ref = {{cascite|correct|??}} | CASNo = 2610-05-1 | UNII_Ref = {{fdacite|changed|FDA}} | UNII = 8NN34MAQ6H | PubChem = 5359775 | ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} | ChemSpiderID = 4514372 | StdInChI_Ref = {{stdinchicite|correct|chemspider}} | StdInChI = 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+;;;; | StdInChIKey_Ref = {{stdinchicite|correct|chemspider}} | StdInChIKey = UPKAWFACSJWKND-ZXFFUEEESA-J | SMILES=[Na+].[Na+].[Na+].[Na+].[O-]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)=O)S([O-])(=O)=O)C(=O)c5c(N)c(c6)S([O-])(=O)=O | MeSHName= }} |Section2= {{Chembox Properties | Formula=C<sub>34</sub>H<sub>24</sub>N<sub>6</sub>Na<sub>4</sub>O<sub>16</sub>S<sub>4</sub> | MolarMass =992.804 | Appearance= Amorphous, fine blue powder. | Density= | MeltingPt = | BoilingPt = }} |Section3= {{Chembox Hazards | MainHazards = Xn<ref>[http://www.chemicalbook.com/ChemicalProductProperty_EN_CB2136938.htm Dye at "Chemical Book"]</ref> | FlashPt= }} }}
'''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.<ref name=Azodye>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}}.</ref>
==References== <references/>
Category:Azo dyes Category:Naphthalenes Category:Phenol ethers Category:Sulfonates Category:Organic sodium salts
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