Fenazaquin

Also known as: 4-[2-[4-(1,1-dimethylethyl)phenyl]ethoxy]quinazoline, 4-tert-Butylphenethyl quinazolin-4-yl ether, 4-((4-(1,1-dimethylethyl)phenyl)ethoxy)quinazoline, Magister, EL-436, Fenazachin, Fenazaquine

Fenazaquin (CAS 120928-09-8) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C20H22N2O and a molecular weight of 306.401 g/mol. Key properties include a boiling point of 461.0±33.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 165.1±15.6 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H332 — Harmful if inhaled and H410 — Very toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 120928-09-8
Jingsj CID: J-1324939-1
Molecular Formula: C₂₀H₂₂N₂O
Molecular Weight: 306.401 g/mol
Category: Ethers
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	461.0±33.0 °C at 760 mmHg
Density	1.1±0.1 g/cm3
Flash Point	165.1±15.6 °C
Exact Mass	306.173218
PSA	35.01000
LogP	5.54
Vapor Pressure	0.0±1.1 mmHg at 25°C
Refractive Index	1.595

GHS Safety & Compliance

Acute Toxicity / Environmental HazardSignal word: Danger

H301 — Toxic if swallowed
H332 — Harmful if inhaled
H410 — Very toxic to aquatic life with long lasting effects

Frequently Asked Questions

What is the CAS number of Fenazaquin?

The CAS number of Fenazaquin is 120928-09-8.

What are the molecular formula and molecular weight of Fenazaquin?

Fenazaquin has molecular formula C20H22N2O and molecular weight 306.401 g/mol.

Is Fenazaquin hazardous?

Fenazaquin has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H332 — Harmful if inhaled; H410 — Very toxic to aquatic life with long lasting effects.

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. "Fenazaquin (CAS 120928-09-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1324939-1 (accessed 2026-11-06).

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