DISPERSE ORANGE 1
Synonym(s):4-(4-Nitrophenylazo)diphenylamine
- CAS NO.：2581-69-3
- Empirical Formula: C18H14N4O2
- Molecular Weight: 318.33
- MDL number: MFCD00007311
- EINECS: 219-954-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 00:57:39
What is DISPERSE ORANGE 1?
Chemical properties
brownish powder
The Uses of DISPERSE ORANGE 1
Disperse orange 1 is a dye in terylene.
The Uses of DISPERSE ORANGE 1
Disperse Orange 1 is an azo disperse dye which is water insoluble. Disperse Orange 1 can be used to dye polyester and acetate fibers. Dyes and metabolites, Environmental Testing.
Safety Profile
Questionable carcinogen with experimental tumorigenic data. When heated to decomposition it emits toxic fumes of NOx
Properties and Applications
red light orange. Melting point 151 ℃, brown flake. Soluble in most organic solvents. The strong sulfuric acid for purple.
| Standard | Ironing Fastness | Light Fastness | Persperation Fastness | Washing Fastness | |||
| Fading | Stain | Fading | Stain | Fading | Stain | ||
| ISO | 4-5 | 3 | 5 | 5 | 5 | 4-5 | 4-5 |
Properties of DISPERSE ORANGE 1
| Melting point: | 160 °C |
| Boiling point: | 457.5°C (rough estimate) |
| Density | 1.2846 (rough estimate) |
| refractive index | 1.6700 (estimate) |
| storage temp. | Refrigerator, under inert atmosphere |
| solubility | DMSO (Slightly, Sonicated), Methanol (Slightly, Sonicated) |
| form | neat |
| Colour Index | 11080 |
| pka | -0.60±0.40(Predicted) |
| color | Dark Purple to Very Dark Purple |
| Water Solubility | 0.4775ug/L(25 ºC) |
| InChI | InChI=1S/C18H14N4O2/c23-22(24)18-12-10-17(11-13-18)21-20-16-8-6-15(7-9-16)19-14-4-2-1-3-5-14/h1-13,19H |
| EPA Substance Registry System | Benzenamine, 4-[(4-nitrophenyl)azo]-N-phenyl- (2581-69-3) |
Safety information for DISPERSE ORANGE 1
Computed Descriptors for DISPERSE ORANGE 1
| InChIKey | YFVXLROHJBSEDW-UHFFFAOYSA-N |
| SMILES | C1(NC2=CC=CC=C2)=CC=C(N=NC2=CC=C([N+]([O-])=O)C=C2)C=C1 |
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