REACTIVE BLUE 4

Synonym(s):1-Amino-4-[3-(4,6-dichlorotriazin-2-ylamino)-4-sulfophenylamino]anthraquinone-2-sulfonic acid;Procion blue MX-R

CAS NO.：13324-20-4
Empirical Formula: C23H14Cl2N6O8S2
Molecular Weight: 637.43
MDL number: MFCD00001218
EINECS: 236-363-9
SAFETY DATA SHEET (SDS)
Update Date: 2025-12-10 09:00:29

What is REACTIVE BLUE 4?

The Uses of REACTIVE BLUE 4

Reactive Blue 4 (CAS# 13324-20-4) is an organic dye used in textiles. Reactive Blue 4 is water-soluble and a pollutant, and has been decolourized in water using microbial fuel cells. Dyes and metabolites.

What are the applications of Application

Reactive blue 4 is an anthraquinone organic dye

Preparation

1-Amino-4-bromo-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid and 2,4-Diaminobenzenesulfonic acid condensation, and ?2,4,6-Trichloro-1,3,5-triazine condensation and salting-out.

Properties and Applications

bright blue. Dark blue powder. The strong sulfuric acid for red brown, diluted into blue; In nitric acid to orange, no change after diluted. The dye water solution is blue, with 1 Moore sodium hydroxide solution is still blue, continue to join insurance powder and warm, turn dark red, plus a boric acid to red,. Mainly used for cotton, nylon, wool, silk and viscose yarn and fabric as the dyeing and printing, printing and dyeing directly. Structure and C.I.Reactive Blue 1 the same.

Standard	Light Fastness	Oxygen bleaching		Persperation Fastness		Soaping
Standard	Light Fastness	Fading	Stain	Fading	Stain	Fading	Stain
ISO	6	3-4	4-5	4 (shallow, green )	5	4(95℃)	4-5

Properties of REACTIVE BLUE 4

Boiling point:	291°C (rough estimate)
Density	1.5315 (rough estimate)
refractive index	1.6000 (estimate)
storage temp.	2-8°C
form	saline suspension
Colour Index	61205
pka	-1.22±0.20(Predicted)
color	Blue to dark blue
BRN	602258
CAS DataBase Reference	13324-20-4(CAS DataBase Reference)
EPA Substance Registry System	2-Anthracenesulfonic acid, 1-amino-4-[[3-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-4-sulfophenyl]amino]-9,10-dihydro-9,10-dioxo- (13324-20-4)

Safety information for REACTIVE BLUE 4

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H319:Serious eye damage/eye irritation
Precautionary Statement Codes	P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.