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)

Safety Information

Risk Statements 

36/37/38

Safety Statements 

26-36

RTECS 

DT4330000

HS Code 

2934.99.4400

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

Vat Red 41(522-75-8)Related Product Information

• C.I.VATRED10
• Solvent Red 218
• Thiophene
• Benzo[b]thien-2-ylboronic acid
• C.I.VATRED15
• C.I.VATRED32
• C.I.VATRED14
• Vat Red 31
• Vat Red 42
• Vat Blue 6
• Vat Green 1
• Vat Blue 4
• Vat Orange 3
• vat black 16
• Vat Black 25
• SOLVENT OIL
• Chelating disperse agent
• c.i.vatred2