Acid Red 172

Name	Acid Red 172
Synonyms	Acid Red 172 C.I.Acid Red 172 Brilliant Red 3B Acid Brilliant Red 3B Triacid Fast Red 3BNL. Disodium 3-((5-chloro-2-(phenylmethoxy)phenyl)azo)-4-hydroxy-5-(((p-tolyl)sulphonyl)amino)naphthalene-2,7-disulphonate disodium 3-[[5-chloro-2-(phenylmethoxy)phenyl]azo]-4-hydroxy-5-[[(p-tolyl)sulphonyl]amino]naphthalene-2,7-disulphonate 3-[[2-(Benzyloxy)-5-chlorophenyl]azo]-4-hydroxy-5-[[(4-methylphenyl)sulfonyl]amino]-2,7-naphthalenedisulfonic acid disodium salt 2, 7-Naphthalenedisulfonic acid, 3-[[5-chloro-2-(phenylmethoxy) phenyl]azo]-4-hydroxy-5-[[(4-methylphenyl) sulfonyl] amino], disodium salt disodium (3E)-3-{2-[2-(benzyloxy)-5-chlorophenyl]hydrazinylidene}-5-{[(4-methylphenyl)sulfonyl]amino}-4-oxo-3,4-dihydronaphthalene-2,7-disulfonate
CAS	6826-53-5
EINECS	229-902-4
InChI	InChI=1/C30H24ClN3O10S3.2Na/c1-18-7-10-22(11-8-18)45(36,37)34-25-16-23(46(38,39)40)13-20-14-27(47(41,42)43)29(30(35)28(20)25)33-32-24-15-21(31)9-12-26(24)44-17-19-5-3-2-4-6-19;;/h2-16,32,34H,17H2,1H3,(H,38,39,40)(H,41,42,43);;/q;2*+1/p-2/b33-29-;

Molecular Formula	C30H22ClN3Na2O10S3
Molar Mass	762.13732
Physical and Chemical Properties	Purplish red powder. Soluble in water.

Use	weak acid brilliant red 3B is suitable for dyeing and printing of wool, silk, nylon and their fabrics, and can be discharged. For wool and a variety of fibers in the same bath dyeing, acetate fiber and cellulose fiber non-staining. It can also be used for color film.
production method	with 2-benzyloxy-5-chloroaniline and N-p-Toluenesulfonyl H acid (N-p-tolylsolfonyl H acid) as raw materials, 2-benzyloxy-5-chloroaniline was first diazotized and then coupled with N-p-Toluenesulfonyl-H acid to give the product. The final product was obtained by filtration, drying and pulverization..

Last Update：2024-04-09 02:00:10