4-Ethyl-2-methoxyphenol

Also known as: 4-Ethylguaiacol, 2-Methoxy-4-ethylphenol, p-Ethylguaiacol, Guaiacyl ethane, 1-Hydroxy-2-methoxy-4-ethylbenzene, 4-Hydroxy-3-methoxy ethylbenzene, 4-Hydroxy-3-methoxyphenylethane, Homocresol, NSC 82313

4-Ethyl-2-methoxyphenol (CAS 2785-89-9) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C9H12O2 and a molecular weight of 152.190 g/mol. Key properties include a melting point of 15 °C(lit.), a boiling point of 246.5±20.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 107.8±0.0 °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.: 2785-89-9
Jingsj CID: J-38690-3
Molecular Formula: C₉H₁₂O₂
Molecular Weight: 152.190 g/mol
Category: Alcohols
Last updated: 8/21/2026

Request MSDS / TDS

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point	15 °C(lit.)
Boiling Point	246.5±20.0 °C at 760 mmHg
Density	1.1±0.1 g/cm3
Flash Point	107.8±0.0 °C
Exact Mass	152.083725
PSA	29.46000
LogP	2.18
Vapor Pressure	0.0±0.5 mmHg at 25°C
Refractive Index	1.525

GHS Safety & Compliance

IrritantSignal word: Warning

H315 — Causes skin irritation
H319 — Causes serious eye irritation
H335 — May cause respiratory irritation

Customs & Trade Information

HS Code	2909500000
Summary	2909500000 ether-phenols, ether-alcohol-phenols and their halogenated, sulphonated, nitrated or nitrosated derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4-Ethyl-2-methoxyphenol?

The CAS number of 4-Ethyl-2-methoxyphenol is 2785-89-9.

What are the molecular formula and molecular weight of 4-Ethyl-2-methoxyphenol?

4-Ethyl-2-methoxyphenol has molecular formula C9H12O2 and molecular weight 152.190 g/mol.

Is 4-Ethyl-2-methoxyphenol hazardous?

4-Ethyl-2-methoxyphenol 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 4-Ethyl-2-methoxyphenol?

For 4-Ethyl-2-methoxyphenol, Upstream Products: Apocynin, 4-Benzyloxy-3-methoxystyrene, 4-Ethyl-1,2-dimethoxybenzene; Downstream Products: protocatechuic acid, 4-ethylcatechol, Methanol.

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. "4-Ethyl-2-methoxyphenol (CAS 2785-89-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38690-3 (accessed 2026-11-09).

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