Category
Heterocyclic Organic Compound
Description
Acid Red 42 is a synthetic dye that belongs to the Acid Dye class.
Acid Red 42, also known as C.I. Acid Red 42, Acid Red G, or Acid Scarlet 3R, is a specific dye within the Acid Dye category.
Synonyms
Acid Red 42;2-Naphthalenesulfonic acid, 6-amino-4-hydroxy-5-2-(phenylsulfonyl)phenylazo-, monosodium salt;Acid red 42 (C.I. 17070);C.I. Acid Red 42;6-Amino-4-hydroxy-5-[
IUPAC Name
sodium;6-amino-5-[[2-(benzenesulfonyl)phenyl]diazenyl]-4-hydroxynaphthalene-2-sulfonate
Molecular Formula
C22H16N3NaO6S2
Canonical SMILES
C1=CC=C(C=C1)S(=O)(=O)C2=CC=CC=C2N=NC3=C(C=CC4=CC(=CC(=C43)O)S(=O)(=O)[O-])N.[Na+]
InChI
InChI=1S/C22H17N3O6S2.Na/c23-17-11-10-14-12-16(33(29,30)31)13-19(26)21(14)22(17)25-24-18-8-4-5-9-20(18)32(27,28)15-6-2-1-3-7-15;/h1-13,26H,23H2,(H,29,30,31);/q;+1/p-1
InChI Key
HJBFOCFLBVMVCF-UHFFFAOYSA-M
Solubility
Soluble in water for red, soluble in ethanol purplish red color.
Application
Acid dyes are water-soluble anionic dyes commonly used for dyeing protein fibers such as silk, wool, and nylon, as well as other materials like leather and synthetic fibers.
Absorbance
min. 1,800(1.5g/L AcONH4 sol., 564.0 to 568.0 nm)
Features And Benefits
The strong sulfuric acid for dark purple, to orange diluted. In water solution to join strong hydrochloric acid have red brown precipitation; Add sodium hydroxide have purplish red precipitate
λmax
max. 564.0 to 568.0 nm(1.5g/L AcONH4 sol.)
Download
![Benzenepropanenitrile,a-[bis(methylthio)methylene]-4-methoxy-b-oxo-](https://resource.alfa-chemistry.com/structure/62455-63-4.gif)
