N4,N4,N4',N4'-tetra([1,1'-biphenyl]-4-yl)-[1,1'-biphenyl]-4,4'-diamine
- CAS NO.：164724-35-0
- Empirical Formula: C60H44N2
- Molecular Weight: 793
- MDL number: MFCD11977303
- EINECS: 200-110-4
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 05:12:23
![N4,N4,N4',N4'-tetra([1,1'-biphenyl]-4-yl)-[1,1'-biphenyl]-4,4'-diamine Structural](https://img.chemicalbook.in/CAS/GIF/164724-35-0.gif)
What is N4,N4,N4',N4'-tetra([1,1'-biphenyl]-4-yl)-[1,1'-biphenyl]-4,4'-diamine?
Description
N4, N4, N4', N4'-tetra([1,1'-biphenyl]-4-yl)-[1,1'-biphenyl]-4,4'-diamine (or BPBPA) is an Electron-Rich Triarylamine Derivative with two amines substituted by four biphenyl groups. It is commonly used as a hole transport layer (HTL) material in OLEDs. BPBPA demonstrates high charge carrier mobility of 1.74 ×10?2 cm2/V?s, enabling rapid hole extraction from the adjacent donor layer. This results in an enhanced open-circuit voltage and improves powder conversion efficiency (PCE) of 9% with reference devices.
Chemical properties
White powder
Properties of N4,N4,N4',N4'-tetra([1,1'-biphenyl]-4-yl)-[1,1'-biphenyl]-4,4'-diamine
| Melting point: | 265°C(lit.) |
| Density | 1.169 |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| form | powder to crystal |
| pka | -2.75±0.60(Predicted) |
| color | White to Light yellow to Green |
Safety information for N4,N4,N4',N4'-tetra([1,1'-biphenyl]-4-yl)-[1,1'-biphenyl]-4,4'-diamine
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
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. P332+P313:IF SKIN irritation occurs: Get medical advice/attention. P337+P313:IF eye irritation persists: Get medical advice/attention. |
Computed Descriptors for N4,N4,N4',N4'-tetra([1,1'-biphenyl]-4-yl)-[1,1'-biphenyl]-4,4'-diamine
| InChIKey | WXAIEIRYBSKHDP-UHFFFAOYSA-N |
| SMILES | C1(C2=CC=C(N(C3=CC=C(C4=CC=CC=C4)C=C3)C3=CC=C(C4=CC=CC=C4)C=C3)C=C2)=CC=C(N(C2=CC=C(C3=CC=CC=C3)C=C2)C2=CC=C(C3=CC=CC=C3)C=C2)C=C1 |
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