Disperse Orange 25
Synonym(s):3-[N-Ethyl-4-(4-nitrophenylazo)phenylamino]propionitrile
- CAS NO.：31482-56-1
- Empirical Formula: C17H17N5O2
- Molecular Weight: 323.35
- MDL number: MFCD00011736
- EINECS: 250-654-8
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:13:13
What is Disperse Orange 25?
Chemical properties
solid
The Uses of Disperse Orange 25
Disperse orange 25 is an industrially utilized dye which can be used in a variety of photonic applications which include optical switches and modulators.
Preparation
4-Nitrobenzenamine diazo, and N-ethyl-N-cyanoethylaniline?coupling.
General Description
Disperse orange 25 is an azo dye that is a non-ionic, aromatic compound which can be used in p-type semiconductors. It can improve the photo-thermal properties of electrochemical devices. Its stable chemical structure and large dipole moment make it useful as a non-linear optical (NLO) material.
Flammability and Explosibility
Not classified
Properties and Applications
Red light orange. Orange uniform powder. Mainly used for polyester and their blended fabric dyeing.
| Standard | Ironing Fastness | Light Fastness | Persperation Fastness | Washing Fastness | |||
| Fading | Stain | Fading | Stain | Fading | Stain | ||
| AATCC | 4-5 | 4 | 6 | 5 | 5 | 4-5 | 5 |
| ISO | 5 | 4-5 | 5-6 | 5 | 4-5 | 5 | 4-5 |
Properties of Disperse Orange 25
| Melting point: | 170 °C (dec.) (lit.) |
| Boiling point: | 555.0±45.0 °C(Predicted) |
| Density | 1.19 |
| vapor pressure | 0Pa at 20℃ |
| pka | 2.14±0.50(Predicted) |
| CAS DataBase Reference | 31482-56-1(CAS DataBase Reference) |
| EPA Substance Registry System | Propanenitrile, 3-[ethyl[4-[(4-nitrophenyl)azo]phenyl]amino]- (31482-56-1) |
Safety information for Disperse Orange 25
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for Disperse Orange 25
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