N,N'-Di-1-naphthyl-N,N'-diphenylbenzidine (NPB)
Synonym(s):N,N′-Bis(naphthalen-1-yl)-N,N′-bis(phenyl)benzidine;NPB;NPD
- CAS NO.：123847-85-8
- Empirical Formula: C44H32N2
- Molecular Weight: 588.74
- MDL number: MFCD03093246
- EINECS: 1312995-182-4
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-07-14 15:27:00
What is N,N'-Di-1-naphthyl-N,N'-diphenylbenzidine (NPB)?
Description
N,N′-Di(1-naphthyl)-N,N′-diphenyl-(1,1′-biphenyl)-4,4′-diamine, also known as NPB or NPD, has been used intensively in OLEDs and other organic electronic devices such as polymer photovoltaics (OPV) and perovskite solar cells for its outstanding hole transport capability.
Chemical properties
Light yellow to yellow powder
The Uses of N,N'-Di-1-naphthyl-N,N'-diphenylbenzidine (NPB)
Hole transporting material for OLED devices
General Description
TGA/DSC Lot specific traces available upon request
Properties of N,N'-Di-1-naphthyl-N,N'-diphenylbenzidine (NPB)
| Melting point: | 279-283°C |
| Boiling point: | 772.5±53.0 °C(Predicted) |
| Density | 1.213±0.06 g/cm3(Predicted) |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | Chloroform (Heated), DMSO (Slightly, Heated, Sonicated), Ethyl Acetate (Slightly |
| form | Powder |
| pka | -0.08±0.50(Predicted) |
| color | Pale yellow |
| λmax | 339nm(THF)(lit.) |
| CAS DataBase Reference | 123847-85-8(CAS DataBase Reference) |
| Absorption | λmax?339 nm |
Safety information for N,N'-Di-1-naphthyl-N,N'-diphenylbenzidine (NPB)
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral 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. P270:Do not eat, drink or smoke when using this product. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P330:Rinse mouth. P362:Take off contaminated clothing and wash before reuse. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P302+P352:IF ON SKIN: wash with plenty of soap and water. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. 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. P405:Store locked up. P403+P233:Store in a well-ventilated place. Keep container tightly closed. P501:Dispose of contents/container to..… |
Computed Descriptors for N,N'-Di-1-naphthyl-N,N'-diphenylbenzidine (NPB)
| InChIKey | IBHBKWKFFTZAHE-UHFFFAOYSA-N |
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