Propyl Red
- CAS NO.：2641-01-2
- Empirical Formula: C19H23N3O2
- Molecular Weight: 325.4
- MDL number: MFCD00041752
- EINECS: 220-140-8
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-04-24 14:58:15
What is Propyl Red?
Chemical properties
dark grey to very dark green crystalline powder
Properties of Propyl Red
| Melting point: | 173-175 °C |
| Boiling point: | 463.59°C (rough estimate) |
| Density | 1.1611 (rough estimate) |
| refractive index | 1.5900 (estimate) |
| solubility | Solubility Insoluble in water; soluble in ethanol, methanol |
| form | Solid |
| pka | 5.48(at 25℃) |
| color | Yellow-orange |
| PH Range | Red (4.6) to yellow (6.6) |
| Major Application | Electrphoresis display device, image contrast-enhancing layer, photography, Photoelectrographic imaging, inks, paints, toys |
| CAS DataBase Reference | 2641-01-2(CAS DataBase Reference) |
| EPA Substance Registry System | Benzoic acid, 2-[[4-(dipropylamino)phenyl]azo]- (2641-01-2) |
Safety information for Propyl Red
Computed Descriptors for Propyl Red
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