2-[2-(4-methylphenyl)ethynyl]benzaldehyde

2-[2-(4-甲基苯基)乙炔基]苯甲醛

Also known as: 2-(p-tolylethynyl)benzaldehyde, 2-[(4-methylphenyl)ethynyl]benzaldehyde, 2-[2-(4-methylphenyl)ethynyl]benzaldehyde, 2-[2-(4-tolyl)ethynyl]benzaldehyde, 2-[2-(p-tolyl)ethynyl]benzaldehyde, 2‐(p‐tolylethynyl)benzaldehyde, Benzaldehyde, 2-[2-(4-methylphenyl)ethynyl]-

2-[2-(4-methylphenyl)ethynyl]benzaldehyde (CAS 189008-33-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C16H12O and a molecular weight of 220.266 g/mol. It is also known as 2-(p-tolylethynyl)benzaldehyde, 2-[(4-methylphenyl)ethynyl]benzaldehyde and 2-[2-(4-tolyl)ethynyl]benzaldehyde. Key properties include a boiling point of 379.8±35.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 166.6±20.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
189008-33-1
Jingsj CID
J-1527659-5
Molecular Formula
C16H12O
Chinese Name
2-[2-(4-甲基苯基)乙炔基]苯甲醛
Molecular Weight
220.266 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point379.8±35.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point166.6±20.9 °C

Frequently Asked Questions

What is the CAS number of 2-[2-(4-methylphenyl)ethynyl]benzaldehyde?

The CAS number of 2-[2-(4-methylphenyl)ethynyl]benzaldehyde is 189008-33-1.

What are the molecular formula and molecular weight of 2-[2-(4-methylphenyl)ethynyl]benzaldehyde?

2-[2-(4-methylphenyl)ethynyl]benzaldehyde has molecular formula C16H12O and molecular weight 220.266 g/mol.

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

Last updated:

How to cite: Jingsj. "2-[2-(4-methylphenyl)ethynyl]benzaldehyde (CAS 189008-33-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1527659-5 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.