Acid red 57 (C.I. 17053)

Name	Acid Red 57
Synonyms	Red 3GP Acid Red 57 Dyacid Red 3GP C.I. Acid Red 57 Lerni Acid Red 3GX Acid red 57 (C.I. 17053) Apollo Nylon Fast Red L-BL 2-Naphthalenesulfonic acid, 6-amino-5-2-(ethylphenylamino)sulfonylphenylazo-4-hydroxy- 6-Amino-5-((2-((ethylphenylamino)sulphonyl)phenyl)azo)-4-hydroxynaphthalene-2-sulphonic acid 6-amino-5-[[2-[(ethylphenylamino)sulphonyl]phenyl]azo]-4-hydroxynaphthalene-2-sulphonic acid (6E)-5-(2-{2-[(2-ethylphenyl)sulfamoyl]phenyl}hydrazino)-6-imino-4-oxo-4,6-dihydronaphthalene-2-sulfonic acid
CAS	12217-34-4
EINECS	235-396-6
InChI	InChI=1/C24H22N4O6S2/c1-2-15-7-3-4-8-19(15)28-35(30,31)22-10-6-5-9-20(22)26-27-24-18(25)12-11-16-13-17(36(32,33)34)14-21(29)23(16)24/h3-14,25-28H,2H2,1H3,(H,32,33,34)/b25-18+

Molecular Formula	C24H22N4O6S2
Molar Mass	526.58
Density	1.48±0.1 g/cm3(Predicted)
pKa	-0.43±0.40(Predicted)
Refractive Index	1.699
Physical and Chemical Properties	Bright blue red powder. Soluble in water, in water solubility (90 deg C) for 70g/L, aqueous solution is red. Dark red in concentrated sulfuric acid.

Use	weak acid red E-BL can be used for dyeing wool, silk and wool blends. It is mainly used for the dyeing of nylon fabric, and can also be mixed with other acid dyes to dye wool fabrics. Used for wool and other fibers in the same bath dyeing, nylon, silk color and wool similar, cellulose fiber does not stain. Can also be used for leather coloring.
production method	with 2-amino-n-ethylbenzenesulfonyl aniline and gamma acid as raw materials, the former is first diazotized, the product is then coupled to the latter. The final product was obtained by filtration, drying and pulverization..

Last Update：2024-04-09 21:01:54

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Mobile: 609-228-6898

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