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4-Chlorophenylglyoxal hydrate

Also known as: 1-(4-Chlorophenyl)-2,2-dihydroxyethanone, (4-Chlorophenyl)(oxo)acetaldehyde hydrate, 4'-chloro-2,2-dihydroxyacetophenone, 4-chlorophenylglyoxal monohydrate

4-Chlorophenylglyoxal hydrate (CAS 4996-21-8) 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 168.57900 g/mol. Key properties include a boiling point of 341.3ºC at 760 mmHg and a flash point of 160.2ºC. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
4996-21-8
Jingsj CID
J-1001500-6
Molecular Formula
C8H5ClO2
Molecular Weight
168.57900 g/mol
Category
Aromatic Hydrocarbons
Last updated
11/2/2026
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Physicochemical Properties

Boiling Point341.3ºC at 760 mmHg
Flash Point160.2ºC
Exact Mass186.008377
PSA43.37000
LogP1.65730

Customs & Trade Information

HS Code2914700090
SummaryHS: 2914700090 halogenated, sulphonated, nitrated or nitrosated derivatives of ketones and quinones, whether or not with other oxygen function Tax rebate rate:9.0% Supervision conditions:none VAT:17.0% MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4-Chlorophenylglyoxal hydrate?

The CAS number of 4-Chlorophenylglyoxal hydrate is 4996-21-8.

What are the molecular formula and molecular weight of 4-Chlorophenylglyoxal hydrate?

4-Chlorophenylglyoxal hydrate has molecular formula C8H5ClO2 and molecular weight 168.57900 g/mol.

What are the upstream and downstream products of 4-Chlorophenylglyoxal hydrate?

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

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

Last updated:

How to cite: Jingsj. "4-Chlorophenylglyoxal hydrate (CAS 4996-21-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1001500-6 (accessed 2026-11-09).

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