The Acid Red 6 with cas registry number of 6245-59-6 is a kind of organics. It is also known as 1-Naphthalenesulfonic acid, 3-((4-(benzoylethylamino)-2-methylphenyl)azo)-4-hydroxy-, monosodium salt; Aminyl Brilliant Red E-B(NSK); Naphthazine Red B(CRD); Suminol Fast Red B(NSK); Supramin Red B(DYS). Its systematic name is called sodium 3-[4-(benzoyl-ethyl-amino)-2-methyl-phenyl]azo-4-hydroxy-naphthalene-1-sulfonate. Its EINECS registry number is 228-358-5.

This chemical is yellow red powder. It can be soluble in water with solubility of 80g / L at 90 °C. The solution shows big red. When adding concentrated hydrochloric acid, the solution will turn into red with precipitation. When adding concentrated sodium hydroxide, the solution will change to orange. This chemical is also soluble in alcohol with appearance of red. When it in concentrated sulfuric acid, it will show cherry red. After diluted, the solution will change to red. Acid Red 6 is used for wool, silk and blended fabric dyeing. And it can be printed directly on wool and silk.

Physical properties about this chemical are: (1)#H bond acceptors: 8; (2)#H bond donors: 2; (3)#Freely Rotating Bonds: 7; (4)Polar Surface Area: 130.84 Å².

You can still convert the following datas into molecular structure:
(1)InChI: InChI=1/C26H23N3O5S.Na/c1-3-29(26(31)18-9-5-4-6-10-18)19-13-14-22(17(2)15-19)27-28-23-16-24(35(32,33)34)20-11-7-8-12-21(20)25(23)30;/h4-16,30H,3H2,1-2H3,(H,32,33,34);/q;+1/p-1/b28-27+;
(2)Smiles: [Na+].c1(cc(c(c2ccccc12)O)\N=N\c1c(cc(cc1)N(CC)C(c1ccccc1)=O)C)S(=O)(=O)[O-]