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Direct Yellow 50 (3214-47-9)

Identification
Name:Direct Yellow 50
Synonyms:1,5-Naphthalenedisulfonicacid, 3,3'-[carbonylbis[imino(2-methyl-4,1-phenylene)azo]]bis-, tetrasodiumsalt (9CI);C.I. Direct Yellow 50 (7CI);C.I. Direct Yellow 50, tetrasodiumsalt (8CI);Abcol Direct Yellow RLSW;C.I. 29025;Direct Fast Yellow LR;DirectFast Yellow R;Direct Lightfast Yellow K;Direct Lightfast Yellow RS;Helion Yellow RL;Isma Fast Yellow RL;Levacell Fast Yellow R;Orbantin Yellow R;Pergasol Yellow 2R;Pyrazol Fast Yellow RSW;Sirius LightYellow R;Sirius Light Yellow R Extra;Sirius Supra Yellow R;Sirius Yellow R;Solophenyl Yellow AGFL;
CAS:3214-47-9
EINECS: 221-728-7
Molecular Formula: C35H24N6Na4O13S4
Molecular Weight: 956.80
InChI: InChI=1/C35H28N6O13S4.4Na/c1-19-13-21(9-11-29(19)40-38-23-15-27-25(33(17-23)57(49,50)51)5-3-7-31(27)55(43,44)45)36-35(42)37-22-10-12-30(20(2)14-22)41-39-24-16-28-26(34(18-24)58(52,53)54)6-4-8-32(28)56(46,47)48;;;;/h3-18H,1-2H3,(H2,36,37,42)(H,43,44,45)(H,46,47,48)(H,49,50,51)(H,52,53,54);;;;/q;4*+1/p-4/b40-38-,41-39+;;;;
Molecular Structure: (C35H24N6Na4O13S4) 1,5-Naphthalenedisulfonicacid, 3,3'-[carbonylbis[imino(2-methyl-4,1-phenylene)azo]]bis-, tetrasodium...
Properties
Appearance:Yellow powder
Specification:

 Direct Yellow 50 (CAS NO.3214-47-9) is also named as C.I. Direct Yellow 50 (VAN) ; C.I. Direct Yellow 50, tetrasodium salt ; Direct Fast Yellow R ; Direct Lightfast Yellow K ; NSC 47763 ; Sirius Light Yellow R ; Sirius Light Yellow R Extra ; 1,5-Naphthalenedisulfonic acid, 3,3'-(carbonylbis(imino(2-methyl-4,1-phenylene)-2,1-diazenediyl))bis-, sodium salt
(1:4) ; 1,5-Naphthalenedisulfonic acid, 3,3'-(carbonylbis(imino(2-methyl-4,1-phenylene)azo))bis-, tetrasodium salt ; C.I. Direct Yellow 50, tetrasodium salt (8CI) ; Tetrasodium 3,3'-(carbonylbis(imino(2-methyl-4,1-phenylene)azo))bisnaphthalene-1,5-disulphonate . Direct Yellow 50 (CAS NO.3214-47-9) is orange powder. It has good water solubility, the solution was yellow, slightly soluble in ethanol, insoluble in other organic solvents.

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