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2-allylbenzene-1,4-diol

Also known as: 2-prop-2-enylbenzene-1,4-diol, 2-allylhydroquinone, allylhydroquinone, 2-allyl-benzene-1,4-diol, 2-allyl-hydroquinone, 2-Allyl-hydrochinon, allylquinol

2-allylbenzene-1,4-diol (CAS 5721-21-1) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C9H10O2 and a molecular weight of 150.17400 g/mol. Key properties include a boiling point of 305ºC at 760 mmHg, a density of 1.148g/cm3 and a flash point of 151.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5721-21-1
Jingsj CID
J-1506286-9
Molecular Formula
C9H10O2
Molecular Weight
150.17400 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point305ºC at 760 mmHg
Density1.148g/cm3
Flash Point151.4ºC
Exact Mass150.06800
PSA40.46000
LogP1.82630
Refractive Index1.586

Frequently Asked Questions

What is the CAS number of 2-allylbenzene-1,4-diol?

The CAS number of 2-allylbenzene-1,4-diol is 5721-21-1.

What are the molecular formula and molecular weight of 2-allylbenzene-1,4-diol?

2-allylbenzene-1,4-diol has molecular formula C9H10O2 and molecular weight 150.17400 g/mol.

What are the upstream and downstream products of 2-allylbenzene-1,4-diol?

For 2-allylbenzene-1,4-diol, Upstream Products: 1,4-Benzoquinone, Allyltributyltin, Allyl bromide.

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

Last updated:

How to cite: Jingsj. "2-allylbenzene-1,4-diol (CAS 5721-21-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1506286-9 (accessed 2026-11-09).

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