N,N′-Di(1-naphthyl)-N,N′-diphenyl-(1,1′-biphenyl)-4,4′-diamine , Sublimation level, 99% , 123847-85-8

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

PRODUCT Properties

• 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）
• pka: -0.08±0.50(Predicted)
• form: Powder
• color: Pale yellow
• λmax: 339nm(THF)(lit.)
• InChIKey: IBHBKWKFFTZAHE-UHFFFAOYSA-N
• SMILES: C1(C2=CC=C(N(C3=C4C(C=CC=C4)=CC=C3)C3=CC=CC=C3)C=C2)=CC=C(N(C2=C3C(C=CC=C3)=CC=C2)C2=CC=CC=C2)C=C1
• CAS DataBase Reference: 123847-85-8(CAS DataBase Reference)
• Absorption: λmax = 339 nm

Description and Uses

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. 
NPB is considered as one of the best materials within its competition, and has become the most common-used material in OLEDs' application. This is due to its increased Tg up to 95 °C, which enhances device morphology and is beneficial for device longevity.

N,N'-Bis- (1-naphthalenyl)-N,N'-bis-phenyl-(1,1'-biphenyl)-4,4'-diamine is used as a hole transporting material for OLED devices.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H302-H315-H319-H335
• Precautionary statements: P261-P264-P270-P271-P280-P301+P312-P302+P352-P304+P340-P305+P351+P338-P330-P332+P313-P337+P313-P362-P403+P233-P405-P501
• Safety Statements: 24/25
• WGK Germany: 3
• HS Code: 29215900