Vat Yellow 33
- CAS NO.：12227-50-8
- Empirical Formula: C54H32N4O6
- Molecular Weight: 832.86
- MDL number: MFCD00800446
- EINECS: 235-436-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-12-31 14:38:37
What is Vat Yellow 33?
Preparation
4-(4-Nitrophenyl)benzic acid with glucose and reduction, then use Thionyl chloride processing generated accidentally nitrogen compounds, and with 1-Aminoanthracene-9,10-dione (2 Moore) condensation.
Flammability and Explosibility
Not classified
Properties and Applications
brilliant yellow. Yellow powder. Alkaline reduction for the red light purple leuco , acidity reduction leuco for yellow. Used for the cotton fabric dyeing as red light yellow. This product to cotton directness high, even dye performance is good, can undertake preventing dye, discharge printing.
| Standard | Ironing Fastness | Chlorine bleach | Light Fastness | Mercerized | Oxygen bleach | Soaping | |
| Fading | Stain | ||||||
| ISO | 3-4 | 5 | 6-7 | 5 | 5 | 5 | 5 |
Properties of Vat Yellow 33
| Density | 1.35 |
| pka | 11.95±0.20(Predicted) |
| EPA Substance Registry System | C.I. Vat Yellow 33 (12227-50-8) |
Safety information for Vat Yellow 33
Computed Descriptors for Vat Yellow 33
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