ACID RED 4

ACID RED 4 Structure
CAS No.
5858-39-9
Chemical Name:
ACID RED 4
Synonyms
Pink B;CI 14710;AZO EOSIN;ACID RED 4;Azo Eosine G;C.I. Acid Red 4;Acid Red 4 (C.I.);acidred4(c.i.14710);AZOEOSIN C.I. NO. 14710;Metamine Fast Acid Red N
CBNumber:
CB5169843
Molecular Formula:
C17H13N2NaO5S
Molecular Weight:
380.35
MOL File:
5858-39-9.mol
MSDS File:
SDS
Modify Date:
2023/4/23 13:52:06

ACID RED 4 Properties

Melting point >210°C(dec.)
storage temp. Amber Vial, Refrigerator, Under inert atmosphere
solubility Methanol (Slightly)
form Solid
color Red
EPA Substance Registry System C.I. Acid Red 4, monosodium salt (5858-39-9)

SAFETY

Risk and Safety Statements

WGK Germany  3

ACID RED 4 Chemical Properties,Uses,Production

Preparation

p-Anisidine diazo, coupled with the 4-Hydroxynaphthalene-1-sulfonic acid.

Definition

ChEBI: An organic sodium salt having 4-hydroxy-3-[(2-methoxyphenyl)diazenyl]naphthalene-1-sulfonate as the counterion.

Properties and Applications

red. Soluble in water for red, soluble in acetone, slightly soluble in ethanol (orange) and toluene. The strong sulfuric acid to red light purple, diluted red for quality. In water solution to join strong hydrochloric acid have dark red precipitate; Add nitric acid have blue-ray red precipitation, first into a brown, then yellow; Add thick sodium hydroxide solution color change.

Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO 5 2-3 2-3 2-3
AATCC 4 1 3 1 1

ACID RED 4 Preparation Products And Raw materials

Raw materials

Preparation Products

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1-Naphthalenesulfonicacid,4-hydroxy-3-[(2-methoxyphenyl)azo]-,monosodiumsalt 4-hydroxy-3-[(2-methoxyphenyl)azo]-1-naphthalenesulfonicacimonosodiumsal acidred4(c.i.14710) ACID RED 4 CI 14710 AZO EOSIN Acid Red 4 (C.I.) C.I. Acid Red 4 sodium 4-hydroxy-3-(2-methoxyphenylazo)naphthalenesulphonate 3-(2-Methoxyphenylazo)-4-hydroxynaphthalene-1-sulfonic acid sodium salt 4-Hydroxy-3-[(2-methoxyphenyl)azo]-1-naphthalenesulfonic acid sodium salt Azo Eosine G AZOEOSIN C.I. NO. 14710 Metamine Fast Acid Red N Pink B Azoeosin C.I. No. 14710 (Technical Grade) C.I.Acid Red 4:C.I.14710 5858-39-9 5858-39-3 C17H13N2O5SNa C17H13N2NaO5S C17H14N2O5SNa Organics