Basic information Safety Supplier Related
ChemicalBook >  Product Catalog >  Dyes and Pigments >  dye >  Solvent Dyes >  Vat Red 41

Vat Red 41

Basic information Safety Supplier Related

Vat Red 41 Basic information

Product Name:
Vat Red 41
Synonyms:
  • 2-(3-oxobenzo[b]thien-2(3h)-ylidene)-benzo[b]thiophene-3(2h)-one
  • FLUORESCENT DYE, RED
  • FLUORESCENT RED DYE
  • C.I. 73300
  • c.i. disperse red 364
  • C.I. Solvent Red 242
  • THIOINDIGO
  • VAT RED 41
CAS:
522-75-8
MF:
C16H8O2S2
MW:
296.36
EINECS:
208-336-1
Product Categories:
  • Azobenzene, etc. (Photochromic Compounds)
  • Functional Materials
  • Photochromic Compounds
  • Solvent Dyestuff
Mol File:
522-75-8.mol
More
Less

Vat Red 41 Chemical Properties

Melting point:
280°C(lit.)
Boiling point:
407.96°C (rough estimate)
Density 
1.3686 (rough estimate)
vapor pressure 
0Pa at 25℃
refractive index 
1.5341 (estimate)
form 
powder to crystal
Colour Index 
73300
color 
Orange to Brown to Dark purple
Water Solubility 
1mg/L
LogP
3.53
CAS DataBase Reference
522-75-8(CAS DataBase Reference)
EPA Substance Registry System
Benzo[b]thiophen-3(2H)-one, 2-(3-oxobenzo[b]thien-2(3H)-ylidene)- (522-75-8)
More
Less

Safety Information

Risk Statements 
36/37/38
Safety Statements 
26-36
RTECS 
DT4330000
HS Code 
2934.99.4400
More
Less

Vat Red 41 Usage And Synthesis

Uses

Thioindigo (cas# 522-75-8) is a useful research chemical. This compound is a dye that is used as an aqueous ink jet for producing recordings and in recyclable food trays.

Flammability and Explosibility

Not classified

Purification Methods

Adsorb it on silica gel from CCl4/*benzene (3:1), elute with *benzene, evaporate, crystallise the residue from CHCl3 and dry it at 60-65o [Wyman & Brode J Am Chem Soc 73 1487 1951; this paper also gives details of purification of other thioindigo dyes]. [Beilstein 19 H 137, 19 I 690, 19 II 192, 19 III/IV 2091.]

Properties and Applications

Standard

Ironing Fastness

Light Fastness

Persperation Fastness

Washing Fastness

Fading

Stain

Fading

Stain

Fading

Stain

AATCC

5

5

7

5

5

5

5

Vat Red 41 Preparation Products And Raw materials

Raw materials

Vat Red 41Supplier

J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Email
jkinfo@jkchemical.com
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
4006608290; 18621169109
Email
market03@meryer.com
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Email
Sales-CN@TCIchemicals.com
BeiJing Hwrk Chemicals Limted
Tel
0757-86329057 18934348241
Email
sales4.gd@hwrkchemical.com
Energy Chemical
Tel
021-021-58432009 400-005-6266
Email
sales8178@energy-chemical.com