N,N'-Diphenyl-N,N'-di(p-tolyl)benzidine

Also known as: N,N'-Diphenyl-N,N'-di(p-tolyl)benzidine, N4,N4'-Diphenyl-N4,N4'-di-p-tolyl-[1,1'-biphenyl]-4,4'-diamine, N,N'-Bis(4-methylphenyl)-N,N'-diphenyl-benzidine, p-TPD, 4,4'-Bis[N-phenyl-N-(p-tolyl)amino]biphenyl, N,N'-Diphenyl-N,N'-bis(4-methylphenyl)[1,1'-biphenyl]-4,4'-diamine

N,N'-Diphenyl-N,N'-di(p-tolyl)benzidine (CAS 20441-06-9) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C38H32N2 and a molecular weight of 516.67400 g/mol. Key properties include a melting point of 165.0-169.0 °C, a boiling point of 680.1±55.0 °C(Predicted) and a density of 1.149±0.06 g/cm3. It is listed by 1 supplier; request a quote for pricing. Record last updated Aug 21, 2026.

CAS No.: 20441-06-9
Jingsj CID: J-1189548-0
Molecular Formula: C₃₈H₃₂N₂
Molecular Weight: 516.67400 g/mol
Category: Organic Bases
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	165.0-169.0 °C
Boiling Point	680.1±55.0 °C(Predicted)
Density	1.149±0.06 g/cm3
Exact Mass	516.25700
PSA	6.48000
LogP	10.91000
Additional Property	Insuluble (2.2E-8 g/L) (25 ºC)

Customs & Trade Information

HS Code	2921590090
Summary	2921590090. other aromatic polyamines and their derivatives; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of N,N'-Diphenyl-N,N'-di(p-tolyl)benzidine?

The CAS number of N,N'-Diphenyl-N,N'-di(p-tolyl)benzidine is 20441-06-9.

What are the molecular formula and molecular weight of N,N'-Diphenyl-N,N'-di(p-tolyl)benzidine?

N,N'-Diphenyl-N,N'-di(p-tolyl)benzidine has molecular formula C38H32N2 and molecular weight 516.67400 g/mol.

Which suppliers offer N,N'-Diphenyl-N,N'-di(p-tolyl)benzidine?

1 supplier(s) listed; request a quote for pricing.

What are the upstream and downstream products of N,N'-Diphenyl-N,N'-di(p-tolyl)benzidine?

For N,N'-Diphenyl-N,N'-di(p-tolyl)benzidine, Upstream Products: 4,4'-Diiodobiphenyl, 4-Methyldiphenylamine, 4-Methyltriphenylamine.

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

Last updated: 8/21/2026

How to cite: Jingsj. "N,N'-Diphenyl-N,N'-di(p-tolyl)benzidine (CAS 20441-06-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1189548-0 (accessed 2026-11-09).

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