Solvent Red 41
Synonym(s):Fuchsin Basic;Rosanilin, AFB
- CAS NO.：3248-93-9
- Empirical Formula: C20H19N3
- Molecular Weight: 301.39
- MDL number: MFCD00055278
- EINECS: 221-832-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:21:22
What is Solvent Red 41?
Definition
ChEBI: An imine that is 4-methylidenecyclohexa-2,5-dien-1-imine in which the hydrogens of the methylidene group are replaced by 4-aminophenyl and 3-methyl-4-aminophenyl groups. The monohydrochloride salt is the histological dye 'rosanilin'.
Preparation
(a) aniline, p-Methylaniline and O-Methylaniline Triethylamine hydrochloride and its mixture and 1-Nitrobenzene or 1-Nitrobenzene and 1-Methyl-2-nitrobenzene mixture, iron and Zinc chloride in the presence of heating (Zinc chloride method); (b) aniline,?p-Methylaniline?and?O-Methylaniline?mixture and Arsenic acid?heating (Arsenic acidmethod).
Properties and Applications
brilliant blue light red (6-Amino-4-hydroxynaphthalene-2-sulfonic acid ). Soluble in water for red light purple, soluble in ethanol to red. In concentrated sulfuric acid for yellow brown solution, dilute almost colorless. Dye aqueous solution to join sodium hydroxide colorless, have red precipitation.
| Standard | Light Fastness | Heat-resistant(℃) | water | Sodium Carbonate(5%) | Hydrochloric acid(5%) | |
| Melting point | Stable | |||||
| ISO | Poor | 60 | Well | Poor | Poor | |
Properties of Solvent Red 41
| Melting point: | 268-270°C decomposes |
| Boiling point: | 432.52°C (rough estimate) |
| Density | 1.0962 (rough estimate) |
| refractive index | 1.6000 (estimate) |
| storage temp. | Store at +15°C to +30°C. |
| Colour Index | 42510 |
| pka | 6.81±0.20(Predicted) |
| PH | 5-6 (1g/l, H2O, 25°C) |
| EPA Substance Registry System | Benzenamine, 4-[(4-aminophenyl)(4-imino-2,5-cyclohexadien-1-ylidene)methyl]-2-methyl- (3248-93-9) |
Safety information for Solvent Red 41
Computed Descriptors for Solvent Red 41
Solvent Red 41 manufacturer
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