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2-(4-Hydroxy-3-methoxyphenyl)acetaldehyde

Also known as: 3-Methoxy-4-hydroxyphenylacetaldehyde, 4-Hydroxy-3-methoxybenzeneacetaldehyde, Homovanillin, HMPAL, 2-(4-Hydroxy-3-methoxyphenyl)ethanal, 3-Methoxy-4-hydroxybenzeneacetaldehyde, Benzeneacetaldehyde, 4-hydroxy-3-methoxy-

2-(4-Hydroxy-3-methoxyphenyl)acetaldehyde (CAS 5703-24-2) is a compound in the Aromatic Hydrocarbons 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 boiling point of 310.5ºC at 760 mmHg, a density of 1.17 g/cm3 and a flash point of 126.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5703-24-2
Jingsj CID
J-1034709-4
Molecular Formula
C9H10O3
Molecular Weight
166.17400 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point310.5ºC at 760 mmHg
Density1.17 g/cm3
Flash Point126.4ºC
Exact Mass166.06300
PSA46.53000
LogP1.14220

Customs & Trade Information

HS Code2912499000
Summary2912499000. other aldehyde-ethers, aldehyde-phenols and aldehydes with other oxygen function. 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-(4-Hydroxy-3-methoxyphenyl)acetaldehyde?

The CAS number of 2-(4-Hydroxy-3-methoxyphenyl)acetaldehyde is 5703-24-2.

What are the molecular formula and molecular weight of 2-(4-Hydroxy-3-methoxyphenyl)acetaldehyde?

2-(4-Hydroxy-3-methoxyphenyl)acetaldehyde has molecular formula C9H10O3 and molecular weight 166.17400 g/mol.

What are the upstream and downstream products of 2-(4-Hydroxy-3-methoxyphenyl)acetaldehyde?

For 2-(4-Hydroxy-3-methoxyphenyl)acetaldehyde, Upstream Products: Eugenol, Homovanillyl alcohol; Downstream Products: Homovanillyl alcohol.

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-(4-Hydroxy-3-methoxyphenyl)acetaldehyde (CAS 5703-24-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1034709-4 (accessed 2026-11-07).

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