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2-(4-chlorophenyl)-2-oxoacetaldehyde

Also known as: (4-chlorophenyl)glyoxal, (4-chloro-phenyl)-oxo-acetaldehyde, 4-chloro-α-oxobenzeneacetaldehyde, NSC 110780, p-chlorophenylglyoxal, 2-oxo-2-(4-chlorophenyl)acetaldehyde, 2-oxo-2-(4-chlorophenyl)ethanal, 2-p-chlorophenyl-2-oxoethanal, Benzeneacetaldehyde, 4-chloro-.alpha.-oxo-

2-(4-chlorophenyl)-2-oxoacetaldehyde (CAS 4998-15-6) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H5ClO2 and a molecular weight of 168.57700 g/mol. Key properties include a boiling point of 251.7ºC at 760 mmHg, a density of 1.294g/cm3 and a flash point of 103.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4998-15-6
Jingsj CID
J-1504399-9
Molecular Formula
C8H5ClO2
Molecular Weight
168.57700 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026
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Physicochemical Properties

Boiling Point251.7ºC at 760 mmHg
Density1.294g/cm3
Flash Point103.3ºC
Exact Mass167.99800
PSA34.14000
LogP1.72160
Refractive Index1.547

Frequently Asked Questions

What is the CAS number of 2-(4-chlorophenyl)-2-oxoacetaldehyde?

The CAS number of 2-(4-chlorophenyl)-2-oxoacetaldehyde is 4998-15-6.

What are the molecular formula and molecular weight of 2-(4-chlorophenyl)-2-oxoacetaldehyde?

2-(4-chlorophenyl)-2-oxoacetaldehyde has molecular formula C8H5ClO2 and molecular weight 168.57700 g/mol.

What are the upstream and downstream products of 2-(4-chlorophenyl)-2-oxoacetaldehyde?

For 2-(4-chlorophenyl)-2-oxoacetaldehyde, Upstream Products: 2-Bromo-4'-chloroacetophenone, 4-Chlorostyrene, 1-(4-Chlorophenyl)ethanone; Downstream Products: 1-(4-chlorophenyl)-2-hydroxy-2-phenylethanone, 2-(4-chlorophenyl)piperazine, 4-Chlorophenylglyoxal hydrate.

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-chlorophenyl)-2-oxoacetaldehyde (CAS 4998-15-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1504399-9 (accessed 2026-11-09).

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