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2-Chloro-3',4'-dihydroxyacetophenone

氯乙酰儿茶酚

Also known as: 3,4-dihydroxyphenacyl chloride, 2-Chloro-1-(3,4-dihydroxyphenyl)ethanone, 4-(Chloroacetyl)catechol, α-Chloro-3,4-dihydroxyacetophenone, 3',4'-DIHYDROXY-2-CHLORO ACETOPHENONE, 3,4-DIHYDROXY-2'-CHLOROACETOPHENONE, 3,4-DIHYDROXY-W-CHLOROACETOPHENONE, 4-(Chloroacetyl)pyrocatechol, Ethanone, 2-chloro-1-(3,4-dihydroxyphenyl)-, MFCD00002200

2-Chloro-3',4'-dihydroxyacetophenone (CAS 99-40-1) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C8H7ClO3 and a molecular weight of 186.592 g/mol. It is also known as 3,4-dihydroxyphenacyl chloride, 2-Chloro-1-(3,4-dihydroxyphenyl)ethanone and 4-(Chloroacetyl)catechol. Key properties include a melting point of 174-176 °C(lit.), a boiling point of 418.7±35.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 207.0±25.9 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
99-40-1
Jingsj CID
J-26501-4
Molecular Formula
C8H7ClO3
Chinese Name
氯乙酰儿茶酚
Molecular Weight
186.592 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Melting Point174-176 °C(lit.)
Boiling Point418.7±35.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point207.0±25.9 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 2-Chloro-3',4'-dihydroxyacetophenone?

The CAS number of 2-Chloro-3',4'-dihydroxyacetophenone is 99-40-1.

What are the molecular formula and molecular weight of 2-Chloro-3',4'-dihydroxyacetophenone?

2-Chloro-3',4'-dihydroxyacetophenone has molecular formula C8H7ClO3 and molecular weight 186.592 g/mol.

Is 2-Chloro-3',4'-dihydroxyacetophenone hazardous?

2-Chloro-3',4'-dihydroxyacetophenone has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "2-Chloro-3',4'-dihydroxyacetophenone (CAS 99-40-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-26501-4 (accessed 2026-10-22).

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