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We are leading manufacturer of Acid Yellow 36 dyes that is widely preferred across the globe due to its high quality and consistency. Best quality raw material and the latest technology is used in manufacturing these acidic dyes to ensure accurate composition and precise value.

Acid Yellow 36 Specification :

The IUPAC name of Acid Yellow 36 is sodium 3-[(4-anilinophenyl)diazenyl]benzenesulfonic acid. With the CAS registry number 587-98-4, it is also named as 4-(3-Sulfobenzeneazo)diphenylamine, sodium salt. The product’s categories are Organics; Analytical Chemistry; Indicator (pH); pH Indicators, and the other registry numbers are 53988-78-6; 68417-63-0; 84842-92-2. Besides, it is orange powder, which should be stored in sealed place. In addition, this chemical is soluble in water, Ethanol, Ether, Benzene, and slightly soluble in Acetone.

The other characteristics of this product can be summarized as:
(1)H-Bond Donor: 2;
(2)H-Bond Acceptor: 6;
(3)Rotatable Bond Count: 5;
(4)Tautomer Count: 2;
(5)Exact Mass: 376.073182;
(6)MonoIsotopic Mass: 376.073182;
(7)Topological Polar Surface Area: 99.5;
(8)Heavy Atom Count: 26;
(9)Formal Charge: 1;
(10)Complexity: 532;
(11)EINECS: 209-608-2.

Preparation and Uses of Acid Yellow 36: please dizotize Metanilic acid. Acid DyesAnd then put the resultant to couple with Diphenylamine. You will obtain this chemical after salting out, filtration, drying and crushing. What’s more, this chemical is used as acid-base indicator. It is also used for dyeing of soap, silk, paper, leather, paints, pharmaceuticals and cosmetics. It can be used for direct printing of wool and silk fabrics. Furthermore, it is used to produce mordant pigment.
When you are using this chemical, please be cautious about it as the following: it is irritating to eyes, respiratory system and skin. And it may cause sensitization by skin contact. Please do not breathe dust. And you should avoid contact with skin and eyes. Additionally, you should wear suitable protective clothing and gloves. Moreover, in case of contact with eyes, please rinse immediately with plenty of water and seek medical advice.

People can use the following data to convert to the molecule structure.
(1)SMILES: [Na+].[O-]S(=O)(=O)c3cccc(/N=N/c2ccc(Nc1ccccc1)cc2)c3
(2)InChI: InChI=1/C18H15N3O3S.Na/c22-25(23,24)18-8-4-7-17(13-18)21-20-16-11-9-15(10-12-16)19-14-5-2-1-3-6-14;/h1-13,19H,(H,22,23,24);/q;+1/p-1/b21-20+
(4)Std. InChI: InChI=1S/C18H15N3O3S.Na/c22-25(23,24)18-8-4-7-17(13-18)21-20-16-11-9-15(10-12-16)19-14-5-2-1-3-6-14;/h1-13,19H,(H,22,23,24);/q;+1/p-1/b21-20+


Properties and Applications:

red light yellow to orange. Yellow powder. Soluble in water, but soluble in ethanol, ethyl ether, benzene and ethylene glycol, slightly soluble in acetone. In purple sulfuric acid, and it will produce red after diluted precipitation. In a blue nitric acid, then turned into orange. Its water solution with hydrochloric acid was red, and the precipitation produce; Add sodium hydroxide solution unchanged, excessive yellow produced after precipitation. Copper ions in dyeing color green dark; Iron ions in a shallow color; Chrome ions in a slightly change. Discharge the gender is good. Mainly used for soap shading, in strong acid dye bath dyeing wool, also can dye leather. When used for paper to measure good color. Also can be used in the manufacture color amylum, paint, wood products, biological dyeing. Can also be used in medicine and cosmetics.


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 36

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