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We are involved in manufacturing, exporting and supplying of Acid Yellow 17 dyes, which are used for coloring the various fabrics like wool, nylon, silk and many more protein fibers. These products are developed at our high end manufacturing division using accurate chemical compositions.

Acid Yellow 17 Specification :

The IUPAC name of Acid yellow 17 is disodium 2,5-dichloro-4-[3-methyl-5-oxo-4-[(4-sulfonatophenyl)diazenyl]-4H-pyrazol-1-yl]benzenesulfonate. With the CAS registry number 6359-98-4, it is also named as Benzenesulfonic acid, 2,5-dichloro-4-(4,5-dihydro-3-methyl-5-oxo-4-((sulfophenyl)azo)-1- H-pyrazol-1-yl)-, disodium salt. Acid DyesThe product’s categories are Dyes and Pigments; Organics; A; Stains and Dyes; Stains & Dyes, A to, and the other registry numbers are 11130-36-2; 1324-95-4; 3791-68-2. Besides, it is yellow powder, which should be stored in sealed, dark, cool and dry place. In addition, When you are using this chemical, please avoid contact with skin and eyes. This chemical is slightly soluble in Ethanol and Acetone, but insoluble in other organic solvents. It would become yellow green when soluble in water.

The other characteristics of this product can be summarized as:

(1)EINECS: 228-819-0;
(2)H-Bond Donor: 0;
(3)H-Bond Acceptor: 10;
(4)Rotatable Bond Count: 3;
(5)Tautomer Count: 4;
(6)Exact Mass: 549.916335;
(7)MonoIsotopic Mass: 549.916335;
(8)Topological Polar Surface Area: 189;
(9)Heavy Atom Count: 33;
(10)Complexity: 942.

Preparation of Acid yellow 17: frist, please diazotize Sodium sulfanilate. And then put it to react with 1-(2′,5′-Dichloro-4′-sulfophenyl)-3-methyl-pyridone. At last, please salt it out to get this chemical.

Uses of Acid yellow 17: this product is mainly used for dyeing and printing of wool and silk fabric. And it can also be used for coloring of leather, paper and anodized Aluminum. Morever, it is used as edible yellow pigment.

People can use the following data to convert to the molecule structure.




Properties and Applications:

Brilliant yellow. Yellow powder. Soluble in water is green light yellow, slightly soluble in ethanol and acetone, insoluble in other organic solvents. The strong sulfuric acid for green light yellow, it will be diluted don’t generate precipitation; In a red light yellow nitric acid. Its water solution with hydrochloric acid discoloration; Add sodium hydroxide solution almost discoloration. Its water solution and carved white piece of bleaching, but in the air oxidation, solution and show red light purple. In dyeing copper and iron ion colour and lustre is a little red and dark, discharge the gender is good. Mainly used for wool in strong acid dye in the bath dyeing, silk dyeing in acetic acid bath, polyamide fiber dyeing in formic acid dye bath. This product can be directly on the wool fabric printing, also can dye leather, and can be made into color which. But on paper surface shading, can also be used in paint, medicine and cosmetics of shading.


Name: Acid Yellow 17
CAS: 6359-98-4
C.I. No.: C.I. 18965
Synonyms C.I. 18965; C.I. Acid Yellow 17; C.I. Acid Yellow 17, disodium salt; C.I. Food Yellow 5; C.I. Acid Yellow 17, disodium salt (VAN) (8CI); Acid yellow 17; Acid Yellow 17; acid yellow 17 (C.I. 18965); Acid Yellow 17 (C.I.); disodium 2,5-dichloro-4-(5-hydroxy-3-methyl-4-(sulphophenylazo)pyrazol-1-yl)benzenesulphonate; Lissamine Fast Yellow; disodium 2,5-dichloro-4-{3-methyl-5-oxo-4-[(E)-(4-sulfonatophenyl)diazenyl]-4,5-dihydro-1H-pyrazol-1-yl}benzenesulfonate; 2,5-dichloro-4-{3-methyl-5-oxo-4-[(E)-(4-sulfophenyl)diazenyl]-4,5-dihydro-1H-pyrazol-1-yl}benzenesulfonic acid; disodium 2-[1-(2,5-dichloro-4-sulfo-phenyl)-3-methyl-5-oxido-pyrazol-4-yl]azobenzenesulfonate
Molecular Formula C16H10Cl2N4Na2O7S2
Molecular Weight 551.2887
InChI InChI=1/C16H12Cl2N4O7S2.2Na/c1-8-15(20-19-11-4-2-3-5-13(11)30(24,25)26)16(23)22(21-8)12-6-10(18)14(7-9(12)17)31(27,28)29;;/h2-7,23H,1H3,(H,24,25,26)(H,27,28,29);;/q;2*+1/p-2/b20-19+;;
CAS Registry Number 6359-98-4
EINECS 228-819-0
Molecular Structure Acid Yellow 17

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