2,5-Diphenylhydroquinone

Also known as: (1,1':4',1''-terphenyl)-2',5'-diol, 1,1':4',1''-Terbenzene-2',5'-diol, 1,1':4',1''-Terphenyl]-2',5'-diol, 2',5'-dihydroxy-p-terphenyl, 2,5-Di(phenyl)benzene-1,4-diol, 2,5-diphenyl-1,4-dihydroquinone, 2,5-diphenyl-1,4-dihydroxybenzene, 2,5-diphenylbenzene-1,4-diol, Hydroquinone, 2,5-diphenyl-, [1,1':4',1''-Terphenyl]-2',5'-diol, p-Terphenyl-2',5'-diol

2,5-Diphenylhydroquinone (CAS 5422-91-3) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C18H14O2 and a molecular weight of 262.30300 g/mol. Key properties include a boiling point of 486.3ºC at 760 mmHg, a density of 1.209g/cm3 and a flash point of 235.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 5422-91-3
Jingsj CID: J-1991866-2
Molecular Formula: C₁₈H₁₄O₂
Molecular Weight: 262.30300 g/mol
Category: Alcohols
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	486.3ºC at 760 mmHg
Density	1.209g/cm3
Flash Point	235.1ºC
Exact Mass	262.09900
PSA	40.46000
LogP	4.43180
Refractive Index	1.651

Customs & Trade Information

HS Code	2906299090
Summary	2906299090 other aromatic alcohols。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2,5-Diphenylhydroquinone?

The CAS number of 2,5-Diphenylhydroquinone is 5422-91-3.

What are the molecular formula and molecular weight of 2,5-Diphenylhydroquinone?

2,5-Diphenylhydroquinone has molecular formula C18H14O2 and molecular weight 262.30300 g/mol.

What are the upstream and downstream products of 2,5-Diphenylhydroquinone?

For 2,5-Diphenylhydroquinone, Upstream Products: 2,5-Diphenyl-1,4-benzoquinone, Phenylboronic acid, 1,4-Benzoquinone; Downstream Products: 2,5-Diphenyl-1,4-benzoquinone.

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. "2,5-Diphenylhydroquinone (CAS 5422-91-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1991866-2 (accessed 2026-11-09).

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