Chemistry:Direct Blue 1

Direct Blue 1

Names
IUPAC name tetrasodium (6E)-4-amino-6-[[4-[4-[N′-(8-amino-1-oxo-5,7-disulfonato-2-naphthylidene)hydrazino]-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	2610-05-1 Y
3D model (JSmol)	Interactive image
ChemSpider	4514372 Y
PubChem CID	5359775
UNII	8NN34MAQ6H N
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+;;;; Y Key: UPKAWFACSJWKND-ZXFFUEEESA-J Y
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
Properties
Chemical formula	C34H24N6Na4O16S4
Molar mass	992.804
Appearance	Amorphous, fine blue powder.
Hazards
Main hazards	Xn
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YN ?)
Infobox references

Tracking categories (test):

• SizeSet

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.