139255-17-7

139255-17-7 - Names and Identifiers

Name	N,N'-Bis(naphthalene-2-yl)-N,N'-bis(phenyl)benzidine
Synonyms	β-NPB LT-E102 N,N'-Di(naphthalen-2-yl)-N,N'-diphenyl-benzine N,N'-Bis(naphthalene-2-yl)-N,N'-bis(phenyl)benzi N,N'-Bis(naphthalene-2-yl)-N,N'-bis(phenyl)benzidine N,N'-Bis(naphthalene-2-yl)-N,N'-bis (phenyl)benzidine N,N'-di(naphthalen-2-yl)-N,N'-diphenylbiphenyl-4,4'-diamine N,N′-Di(2-naphthyl-N,N′-diphenyl)-1,1′-biphenyl-4,4′-diamine N,N'-Bis(naphthalene-2-yl)-N,N'-diphenyl-[1,1'-biphenyl]-4,4'-diamine [1,1'-Biphenyl]-4,4'-diamine,N4,N4'-di-2-naphthalenyl-N4,N4'-diphenyl- N4,N4'-Di(naphthalen-2-yl)-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine N-[4-[4-(N-naphthalen-2-ylanilino)phenyl]phenyl]-N-phenylnaphthalen-2-amine
CAS	139255-17-7
InChI	InChI=1/C44H32N2/c1-3-15-39(16-4-1)45(43-29-23-33-11-7-9-13-37(33)31-43)41-25-19-35(20-26-41)36-21-27-42(28-22-36)46(40-17-5-2-6-18-40)44-30-24-34-12-8-10-14-38(34)32-44/h1-32H

139255-17-7 - Physico-chemical Properties

Molecular Formula	C44H32N2
Molar Mass	588.74
Density	1.213
Melting Point	174~176°C
Boling Point	772.5±53.0 °C(Predicted)
Flash Point	340.846°C
Vapor Presure	0mmHg at 25°C
Appearance	White to beige powder or crystal
Color	White to Orange to Green
pKa	-0.08±0.50(Predicted)
Storage Condition	2-8°C
Refractive Index	1.733
MDL	MFCD03093247

139255-17-7 - Risk and Safety

WGK Germany

139255-17-7 - Introduction

N,N'-Di (naphthalen-2-yl)-N,N'-di (phenyl) biphenyl-4, 4 '-diamine is an organic compound with the chemical formula C44H32N2. Its common name is 2,2 '-naphthyl benzidine.

Nature:
1. Appearance: Colorless crystalline solid.
2. Melting point: about 250-252°C.
3. Solubility: insoluble in water, soluble in organic solvents such as ethanol, dichloromethane and benzene.
4. Stability: Stable at room temperature and pressure.

Use:
1. 2,2 '-naphthylbenzidine is an important fluorescent dye, which is widely used in fluorescence display, dye laser and fluorescent enzyme immunoassay.
2. It can also be used as a fluorescent probe for detecting organic matter and biologically active substances.
3. Due to its special optical properties, 2,2 '-naphthyl benzidine can also be used as a material component in optoelectronic devices.

Preparation Method:
2,2 '-naphthyl benzidine is generally synthesized by chemical synthesis. A common synthesis method is to react phthalic acid dianhydride and 2-naphthylamine to form 2,2 '-dicarboxylic acid naphthalene salt, and then conduct hydrogenation reaction to obtain the target product.

Safety Information:
1. 2,2 '-naphthyl benzidine has low toxicity under conventional operating conditions, but it is still recommended to perform it under reasonable operation and avoid direct inhalation or skin contact.
2. During use, avoid contact with strong oxidants and strong acids to prevent dangerous reactions.
3. During handling and storage, attention should be paid to moisture-proof and sealing to avoid contact with fire sources.
4. When used in the laboratory, you should wear appropriate personal protective equipment, such as laboratory gloves, goggles and laboratory coats.

Last Update：2024-04-10 22:29:15