Vat Red 41
- CAS NO.:522-75-8
- Empirical Formula: C16H8O2S2
- Molecular Weight: 296.36
- MDL number: MFCD00191692
- EINECS: 208-336-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-07-16 09:55:47
What is Vat Red 41?
The Uses of Vat Red 41
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 |
Properties of Vat Red 41
| 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 |
| 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 for Vat Red 41
| Signal word | Warning |
| Pictogram(s) |
![]() Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H317:Sensitisation, Skin H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for Vat Red 41
New Products
Methyl 2-hydroxy-3-nitrobenzoate 1,3-Diethyl-1,3-Diphenylurea 2,4-dihydroxybenzaldehyde 3-(4-morpholinophenylamino)-5-amino-1H-pyrazole-4-carbonitrile Methyl 2-methylquinoline-6-carboxylate 2-((4-morpholinophenylamino) (methylthio) methylene) malononitrile 1,3-Di Iodo Benzene Methyl 2-oxo-2,3-dihydrobenzo[d]oxazole-7-carboxylate 4-(2-Aminoethyl)-7-hydroxy-2H-chromoen-2-one 3-Hydroxy-4-nitrobromobenzene 2-Ethyl-1,4-diaminobenzene 2-Ethylhexyl 4-aminobenzoate Thio AcetamideRelated products of tetrahydrofuran
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