3,3'-Dihydroxybenzidine

3,3'-二羟基联苯胺

Also known as: 4,4'-Diamino-[1,1'-biphenyl]-3,3'-diol, 4,4'-Diamino-3,3'-dihydroxybiphenyl, 4,4'-Diamino-3,3'-biphenyldiol, 3,3'-Dihydroxy-4,4'-diaminobiphenyl, 3,3'-Dihydroxybiphenyl-4,4'-diamine, 2-amino-5-(4-amino-3-hydroxyphenyl)phenol, Benzidine,3,3'-dihydroxy, Benzidine-3,3'-diol, Dihydroxybenzidine, 3,3'-Dioxybenzidine, [1,1'-Biphenyl]-3,3'-diol, 4,4'-diamino-, MFCD00039149

3,3'-Dihydroxybenzidine (CAS 2373-98-0) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C12H12N2O2 and a molecular weight of 216.236 g/mol. It is also known as 4,4'-Diamino-[1,1'-biphenyl]-3,3'-diol, 4,4'-Diamino-3,3'-dihydroxybiphenyl and 4,4'-Diamino-3,3'-biphenyldiol. Key properties include a melting point of 292 °C, a boiling point of 440.7±45.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 220.3±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2373-98-0
Jingsj CID
J-1001865-1
Molecular Formula
C12H12N2O2
Chinese Name
3,3'-二羟基联苯胺
Molecular Weight
216.236 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Melting Point292 °C
Boiling Point440.7±45.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point220.3±28.7 °C

Frequently Asked Questions

What is the CAS number of 3,3'-Dihydroxybenzidine?

The CAS number of 3,3'-Dihydroxybenzidine is 2373-98-0.

What are the molecular formula and molecular weight of 3,3'-Dihydroxybenzidine?

3,3'-Dihydroxybenzidine has molecular formula C12H12N2O2 and molecular weight 216.236 g/mol.

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

Last updated:

How to cite: Jingsj. "3,3'-Dihydroxybenzidine (CAS 2373-98-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1001865-1 (accessed 2026-10-25).

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