2-phenoxycyclohexa-2,5-diene-1,4-dione

Also known as: NSC75681, 2-phenoxy-1,4-benzoquinone, 2-(phenoxy)-p-benzoquinone, 2,5-cyclohexadiene-1,4-dione, 2-phenoxy-

2-phenoxycyclohexa-2,5-diene-1,4-dione (CAS 3490-49-1) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C12H8O3 and a molecular weight of 200.19000 g/mol. Key properties include a boiling point of 313.3ºC at 760 mmHg, a density of 1.304g/cm3 and a flash point of 137.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 3490-49-1
Jingsj CID: J-1500615-2
Molecular Formula: C₁₂H₈O₃
Molecular Weight: 200.19000 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	313.3ºC at 760 mmHg
Density	1.304g/cm3
Flash Point	137.9ºC
Exact Mass	200.04700
PSA	43.37000
LogP	1.65730
Refractive Index	1.612

Customs & Trade Information

HS Code	2914690090
Summary	2914690090 other quinones。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-phenoxycyclohexa-2,5-diene-1,4-dione?

The CAS number of 2-phenoxycyclohexa-2,5-diene-1,4-dione is 3490-49-1.

What are the molecular formula and molecular weight of 2-phenoxycyclohexa-2,5-diene-1,4-dione?

2-phenoxycyclohexa-2,5-diene-1,4-dione has molecular formula C12H8O3 and molecular weight 200.19000 g/mol.

What are the upstream and downstream products of 2-phenoxycyclohexa-2,5-diene-1,4-dione?

For 2-phenoxycyclohexa-2,5-diene-1,4-dione, Upstream Products: 2-Bromo-1,4-benzoquinone, Phenol, Sodium 2,4,6-trichlorophenolate.

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-phenoxycyclohexa-2,5-diene-1,4-dione (CAS 3490-49-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1500615-2 (accessed 2026-11-09).

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