4,4'-Dihydroxyazobenzene

Also known as: Phenol,4,4'-(1,2-diazenediyl)bis-, 4,4'-Azodiphenol, 4,4'-Azobis(phenol), 4,4'-Bis-hydroxyazobenzene, 4,4'-(E)-Diazene-1,2-diyldiphenol, 4-(4-hydroxyphenylazo)phenol, Azobenzene-4,4'-diol

4,4'-Dihydroxyazobenzene (CAS 2050-16-0) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H10N2O2 and a molecular weight of 214.22000 g/mol. Key properties include a melting point of 215 °C(dec.), a boiling point of 392ºC at 760mmHg, a density of 1.24g/cm3 and a flash point of 190.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 2050-16-0
Jingsj CID: J-1354986-5
Molecular Formula: C₁₂H₁₀N₂O₂
Molecular Weight: 214.22000 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	215 °C(dec.)
Boiling Point	392ºC at 760mmHg
Density	1.24g/cm3
Flash Point	190.9ºC
Exact Mass	214.07400
PSA	65.18000
LogP	3.51320
Vapor Pressure	1.04E-06mmHg at 25°C
Refractive Index	1.618

Customs & Trade Information

HS Code	2927000090
Summary	2927000090 other diazo-, azo- or azoxy-compounds。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4,4'-Dihydroxyazobenzene?

The CAS number of 4,4'-Dihydroxyazobenzene is 2050-16-0.

What are the molecular formula and molecular weight of 4,4'-Dihydroxyazobenzene?

4,4'-Dihydroxyazobenzene has molecular formula C12H10N2O2 and molecular weight 214.22000 g/mol.

What are the upstream and downstream products of 4,4'-Dihydroxyazobenzene?

For 4,4'-Dihydroxyazobenzene, Downstream Products: 4-Amino-2,6-dichlorophenol, tert-Butyl (4-hydroxyphenyl)carbamate, 3-Chloro-4-hydroxyaniline.

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. "4,4'-Dihydroxyazobenzene (CAS 2050-16-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1354986-5 (accessed 2026-11-09).

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