2-hydroxy-1-(4-methoxyphenyl)ethan-1-one

Also known as: 2-hydroxy-1-(4-methoxyphenyl)-1-ethanone, 2-hydroxy-1-(4-methoxyphenyl)ethanone, 1-(4-methoxyphenyl)-2-hydroxyethanone, 4'-methoxy-α-hydroxyacetophenone, α-hydroxy-4'-methoxyacetophenone, alpha-hydroxy-4'-methoxyacetophenone, Ethanone,2-hydroxy-1-(4-methoxyphenyl)-, MFCD00004668, NSC 67341

2-hydroxy-1-(4-methoxyphenyl)ethan-1-one (CAS 4136-21-4) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C9H10O3 and a molecular weight of 166.17400 g/mol. Key properties include a melting point of 100-103ºC, a boiling point of 316.6ºC at 760 mmHg, a density of 1.166 g/cm3 and a flash point of 129.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 4136-21-4
Jingsj CID: J-1447923-3
Molecular Formula: C₉H₁₀O₃
Molecular Weight: 166.17400 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	100-103ºC
Boiling Point	316.6ºC at 760 mmHg
Density	1.166 g/cm3
Flash Point	129.4ºC
Exact Mass	166.06300
PSA	46.53000
LogP	0.87020
Refractive Index	1.537

Customs & Trade Information

HS Code	2914509090
Summary	HS:2914509090 other ketones with other oxygen function 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 2-hydroxy-1-(4-methoxyphenyl)ethan-1-one?

The CAS number of 2-hydroxy-1-(4-methoxyphenyl)ethan-1-one is 4136-21-4.

What are the molecular formula and molecular weight of 2-hydroxy-1-(4-methoxyphenyl)ethan-1-one?

2-hydroxy-1-(4-methoxyphenyl)ethan-1-one has molecular formula C9H10O3 and molecular weight 166.17400 g/mol.

What are the upstream and downstream products of 2-hydroxy-1-(4-methoxyphenyl)ethan-1-one?

For 2-hydroxy-1-(4-methoxyphenyl)ethan-1-one, Upstream Products: 2-Bromo-4′-methoxyacetophenone, Formaldehyde, 4-Methoxybenzaldehyde; Downstream Products: 4-(4-Methoxyphenyl)-2-methylthiazole, 4-Methoxybenzoic acid, Formaldehyde.

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-hydroxy-1-(4-methoxyphenyl)ethan-1-one (CAS 4136-21-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1447923-3 (accessed 2026-11-09).

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