4,4',4''-Tris(carbazol-9-yl)-triphenylamine
Synonym(s):TCTA
- CAS NO.：139092-78-7
- Empirical Formula: C54H36N4
- Molecular Weight: 740.89
- MDL number: MFCD03093250
- EINECS: 625-738-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 00:32:02
What is 4,4',4''-Tris(carbazol-9-yl)-triphenylamine?
Description
Having three carbazole units as the pendants and triarylamine at the core,?tris(4-carbazoyl-9-ylphenyl)amine (TCTA) is electron-rich. As a result, it is widely used as a hole-transport and hole-injection material in light-emitting diodes and perovskite solar cells. With low electron mobility, TCTA has also been used as exciton/electron blocking layer materials because of its high lying LUMO energy level (LUMO = 2.4 eV).
Chemical properties
Light yellow solid
The Uses of 4,4',4''-Tris(carbazol-9-yl)-triphenylamine
4,4'',4''''-Tris(carbazol-9-yl)-triphenylamine has been patented for use in the preparation of light-emitting materials for organic electroluminescent devices.
Properties of 4,4',4''-Tris(carbazol-9-yl)-triphenylamine
| Melting point: | 298~300°C |
| Density | 1.23±0.1 g/cm3(Predicted) |
| storage temp. | Inert atmosphere,Room Temperature |
| form | powder to crystal |
| pka | -5.97±0.60(Predicted) |
| color | White to Orange to Green |
| λmax | 326nm(CH2Cl2)(lit.) |
| CAS DataBase Reference | 139092-78-7 |
| Absorption | λmax?293?and?326 nm (THF) |
Safety information for 4,4',4''-Tris(carbazol-9-yl)-triphenylamine
| 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. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. 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 4,4',4''-Tris(carbazol-9-yl)-triphenylamine
| InChIKey | AWXGSYPUMWKTBR-UHFFFAOYSA-N |
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