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2,3-Dimethoxy-5-methyl-1,4-benzoquinone

Also known as: Ubiquinone Q0, Coenzyme Q0, 2,3-Dimethoxy-5-methyl-p-benzoquinone, 2,3-Dimethoxy-5-methyl-2,5-cyclohexadiene-1,4-dione, p-Benzoquinone, 2,3-dimethoxy-5-methyl-

2,3-Dimethoxy-5-methyl-1,4-benzoquinone (CAS 605-94-7) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C9H10O4 and a molecular weight of 182.173 g/mol. Key properties include a melting point of 58-60 °C(lit.), a boiling point of 331.4±42.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 148.6±27.9 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
605-94-7
Jingsj CID
J-18621-8
Molecular Formula
C9H10O4
Molecular Weight
182.173 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point58-60 °C(lit.)
Boiling Point331.4±42.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point148.6±27.9 °C
Exact Mass182.057907
PSA52.60000
LogP0.12
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.498

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Activity & Biological Data

Additional Information[1]. Yang HL, et, al. Coenzyme Q0 regulates NFκB/AP-1 activation and enhances Nrf2 stabilization in attenuation of LPS-induced inflammation and redox imbalance: Evidence from in vitro and in vivo studies. Biochim Biophys Acta. 2016 Feb;1859(2):246-61. [2]. Yang HL, et, al. Coenzyme Q0 regulates NFκB/AP-1 activation and enhances Nrf2 stabilization in attenuation of LPS-induced inflammation and redox imbalance: Evidence from in vitro and in vivo studies. Biochim Biophys Acta. 2016 Feb;1859(2):246-61. [3]. Yang HL, et, al. Anti-angiogenic properties of coenzyme Q0 through downregulation of MMP-9/NF-κB and upregulation of HO-1 signaling in TNF-α-activated human endothelial cells. Biochem Pharmacol. 2015 Nov 1;98(1):144-56.

Frequently Asked Questions

What is the CAS number of 2,3-Dimethoxy-5-methyl-1,4-benzoquinone?

The CAS number of 2,3-Dimethoxy-5-methyl-1,4-benzoquinone is 605-94-7.

What are the molecular formula and molecular weight of 2,3-Dimethoxy-5-methyl-1,4-benzoquinone?

2,3-Dimethoxy-5-methyl-1,4-benzoquinone has molecular formula C9H10O4 and molecular weight 182.173 g/mol.

Is 2,3-Dimethoxy-5-methyl-1,4-benzoquinone hazardous?

2,3-Dimethoxy-5-methyl-1,4-benzoquinone has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 2,3-Dimethoxy-5-methyl-1,4-benzoquinone?

For 2,3-Dimethoxy-5-methyl-1,4-benzoquinone, Upstream Products: 1,2,3-Trimethoxy-5-methylbenzene, 2,3-dimethoxy-5-methylphenol, 2,3,4-Trimethoxy-6-methylphenol; Downstream Products: Coenzyme Q6, 2,3-Dimethoxy-5-methyl-1,4-benzenediol, Dehydroascorbic acid.

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

Last updated:

How to cite: Jingsj. "2,3-Dimethoxy-5-methyl-1,4-benzoquinone (CAS 605-94-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-18621-8 (accessed 2026-11-06).

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