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N,N'-Bis(naphthalene-2-yl)-N,N'-bis(phenyl)benzidine

Also known as: N,N'-Di(2-naphthyl)-N,N'-diphenyl-4,4'-biphenyldiamine, N,N'-Di(2-naphthyl)-N,N'-diphenylbiphenyl-4,4'-diamine, N,N'-Di(2-naphthyl-N,N'-diphenyl)-1,1'-biphenyl-4,4'-diamine, N,N'-di(naphthalen-2-yl)-N,N'-diphenyl-benzidine, N,N'-dinaphthyl-N,N'-diphenyl-1,1'-biphenyl-4,4'-diamine, N,N'-diphenyl-N,N'-bis(2-naphthyl)-4,4'-diaminobiphenyl, N4,N4'-Di(naphthalen-2-yl)-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine, [1,1'-Biphenyl]-4,4'-diamine, N,N-di-2-naphthalenyl-N,N-diphenyl-

N,N'-Bis(naphthalene-2-yl)-N,N'-bis(phenyl)benzidine (CAS 139255-17-7) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C44H32N2 and a molecular weight of 588.738 g/mol. Key properties include a melting point of 174-176ºC, a boiling point of 772.5±53.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 340.8±18.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
139255-17-7
Jingsj CID
J-1030050-2
Molecular Formula
C44H32N2
Molecular Weight
588.738 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Melting Point174-176ºC
Boiling Point772.5±53.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point340.8±18.8 °C
Exact Mass588.256531
PSA6.48000
LogP13.48
Vapor Pressure0.0±2.6 mmHg at 25°C
Refractive Index1.733

Frequently Asked Questions

What is the CAS number of N,N'-Bis(naphthalene-2-yl)-N,N'-bis(phenyl)benzidine?

The CAS number of N,N'-Bis(naphthalene-2-yl)-N,N'-bis(phenyl)benzidine is 139255-17-7.

What are the molecular formula and molecular weight of N,N'-Bis(naphthalene-2-yl)-N,N'-bis(phenyl)benzidine?

N,N'-Bis(naphthalene-2-yl)-N,N'-bis(phenyl)benzidine has molecular formula C44H32N2 and molecular weight 588.738 g/mol.

What are the upstream and downstream products of N,N'-Bis(naphthalene-2-yl)-N,N'-bis(phenyl)benzidine?

For N,N'-Bis(naphthalene-2-yl)-N,N'-bis(phenyl)benzidine, Upstream Products: 4,4'-Diiodobiphenyl, N-Phenyl-2-naphthylamine, 4,4'-Dibromobiphenyl.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "N,N'-Bis(naphthalene-2-yl)-N,N'-bis(phenyl)benzidine (CAS 139255-17-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1030050-2 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.