2,2'-Dimethylbenzidine

4,4'-二氨基-2,2'-二甲基联苯

Also known as: m-Tolidine, 4,4'-Diamino-2,2'-dimethylbiphenyl, 2,2'-Dimethyl-4,4'-biphenyldiamine, 2,2'-Dimethyl[1,1'-biphenyl]-4,4'-diamine, 4-(4-Amino-2-methylphenyl)-3-methylaniline, Benzidine, 2,2'-dimethyl-, UNII-O23M27FP1T

2,2'-Dimethylbenzidine (CAS 84-67-3) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C14H16N2 and a molecular weight of 212.290 g/mol. It is also known as m-Tolidine, 4,4'-Diamino-2,2'-dimethylbiphenyl and 2,2'-Dimethyl-4,4'-biphenyldiamine. Key properties include a melting point of 105-106ºC, a boiling point of 344.4±37.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 192.9±26.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
84-67-3
Jingsj CID
J-1338306-4
Molecular Formula
C14H16N2
Chinese Name
4,4'-二氨基-2,2'-二甲基联苯
Molecular Weight
212.290 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point105-106ºC
Boiling Point344.4±37.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point192.9±26.0 °C

Frequently Asked Questions

What is the CAS number of 2,2'-Dimethylbenzidine?

The CAS number of 2,2'-Dimethylbenzidine is 84-67-3.

What are the molecular formula and molecular weight of 2,2'-Dimethylbenzidine?

2,2'-Dimethylbenzidine has molecular formula C14H16N2 and molecular weight 212.290 g/mol.

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

Last updated:

How to cite: Jingsj. "2,2'-Dimethylbenzidine (CAS 84-67-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1338306-4 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.