SPECIAL RED 3R
- CAS NO.：6483-64-3
- Empirical Formula: C41H32N4O4
- Molecular Weight: 644.72
- MDL number: MFCD01730405
- EINECS: 229-342-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-04-24 14:58:24
What is SPECIAL RED 3R?
Preparation
4,4′-Diamino-3,3′-dimethoxytriphenylmethane double nitrogen, and Naphthalen-2-ol (2 Moore) coupling.
Properties and Applications
yellow red. Slightly soluble in ethanol, soluble in acetone and benzene, insoluble in water. In concentrated sulfuric acid for yellow green, to orange after diluted in concentrated sodium hydroxide of insoluble.
| Standard | Light Fastness | Heat-resistant(℃) | water | Sodium Carbonate(5%) | Hydrochloric acid(5%) | |
| Melting point | Stable | |||||
| ISO | Poor | Insoluble | ||||
Properties of SPECIAL RED 3R
| Boiling point: | 674.59°C (rough estimate) |
| Density | 1.1840 (rough estimate) |
| refractive index | 1.6000 (estimate) |
| pka | 13.31±0.50(Predicted) |
| EPA Substance Registry System | 2-Naphthalenol, 1,1'-[(phenylmethylene)bis[(2-methoxy-4,1-phenylene)azo]]bis- (6483-64-3) |
Safety information for SPECIAL RED 3R
Computed Descriptors for SPECIAL RED 3R
SPECIAL RED 3R manufacturer
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