Vat Voilet 3
- CAS NO.：2379-75-1
- Empirical Formula: C20H14Cl2O2S2
- Molecular Weight: 421.36
- MDL number: MFCD09838808
- EINECS: 219-164-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-10-23 17:25:30
What is Vat Voilet 3?
Preparation
2,5-Dimethyl-4-chlorophenylmercaptoacetic acid with Chlorosulfonic acid cyclization, oxidation. This intermediate is chlorinated using the sulfonyl chloride route xylene (BIOS) derived.
Properties and Applications
brilliant red light purple. Red purple powder. Insoluble in water, ethanol and general organic solvent. In concentrated sulfuric acid for SAP green, dilution after pale red light purple. Alkaline reduction leuco for yellow; Acid reduction leuco colorless. This product is light embrittlement phenomenon.?Mainly used in cotton yarn dyeing indigo with bromine, etc. Tile Black Vat Brown RRD use. Rubbing fastness, but also for direct printing of cotton fabrics, resist printing and discharge printing.
| Standard | Ironing Fastness | Chlorine bleach | Light Fastness | Mercerized | Oxygen bleach | Soaping | |
| Fading | Stain | ||||||
| ISO | 4 | 5 | 5 | 3 | 4 | 4-5 | 5 |
| AATCC | 5 | 5 | 5 | 3-4 | 4 | ||
Properties of Vat Voilet 3
| Boiling point: | 551.8±50.0 °C(Predicted) |
| Density | 1.499 |
| storage temp. | 2-8°C |
| EPA Substance Registry System | Benzo[b]thiophen-3(2H)-one, 5-chloro-2-(5-chloro-4,7-dimethyl-3-oxobenzo[b]thien-2(3H)-ylidene)-4,7-dimethyl- (2379-75-1) |
Safety information for Vat Voilet 3
Computed Descriptors for Vat Voilet 3
Vat Voilet 3 manufacturer
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