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p-Methylphenylacetaldehyde

Also known as: (4-Methylphenyl)acetaldehyde, 2-(4-methylphenyl)acetaldehyde, 2-p-tolylethanal, p-Tolylacetaldehyde, 4-Methylbenzeneacetaldehyde, 4-Tolylacetaldehyde, Benzeneacetaldehyde, 4-methyl-, Acetaldehyde, p-tolyl-, FEMA 3071

p-Methylphenylacetaldehyde (CAS 104-09-6) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H10O and a molecular weight of 134.175 g/mol. Key properties include a melting point of 40°C, a boiling point of 220.1±9.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 102.1±10.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
104-09-6
Jingsj CID
J-1373832-4
Molecular Formula
C9H10O
Molecular Weight
134.175 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point40°C
Boiling Point220.1±9.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point102.1±10.2 °C
Exact Mass134.073166
PSA17.07000
LogP2.24
Vapor Pressure0.1±0.4 mmHg at 25°C
Refractive Index1.513

Customs & Trade Information

HS Code2912299000
Summary2912299000. other cyclic aldehydes without other oxygen function. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of p-Methylphenylacetaldehyde?

The CAS number of p-Methylphenylacetaldehyde is 104-09-6.

What are the molecular formula and molecular weight of p-Methylphenylacetaldehyde?

p-Methylphenylacetaldehyde has molecular formula C9H10O and molecular weight 134.175 g/mol.

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

Last updated:

How to cite: Jingsj. "p-Methylphenylacetaldehyde (CAS 104-09-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1373832-4 (accessed 2026-11-09).

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