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2,3-Dihydro-1,4-benzodioxine-2-carbonyl chloride

2,3-二氢-1,4-苯并二噁英-2-碳酰氯

Also known as: 1,4-Benzodioxan-2-carbonyl chloride, 1,4-Benzodioxane-2-carbonyl chloride, 2,3-Dihydrobenzo[b][1,4]dioxine-2-carbonyl chloride, 1,4-Benzodioxin-2-carbonyl chloride, 2,3-dihydro-, 2,3-Dihydrobenzo[1,4]dioxine-2-carbonyl chloride, 2-benzodioxanylcarbonyl chloride

2,3-Dihydro-1,4-benzodioxine-2-carbonyl chloride (CAS 3663-81-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H7ClO3 and a molecular weight of 198.60300 g/mol. It is also known as 1,4-Benzodioxan-2-carbonyl chloride, 1,4-Benzodioxane-2-carbonyl chloride and 2,3-Dihydrobenzo[b][1,4]dioxine-2-carbonyl chloride. Key properties include a melting point of 56-59ºC, a boiling point of 279.9ºC at 760mmHg, a density of 1.374g/cm3 and a flash point of 123.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3663-81-8
Jingsj CID
J-43627-2
Molecular Formula
C9H7ClO3
Chinese Name
2,3-二氢-1,4-苯并二噁英-2-碳酰氯
Molecular Weight
198.60300 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point56-59ºC
Boiling Point279.9ºC at 760mmHg
Density1.374g/cm3
Flash Point123.2ºC

Frequently Asked Questions

What is the CAS number of 2,3-Dihydro-1,4-benzodioxine-2-carbonyl chloride?

The CAS number of 2,3-Dihydro-1,4-benzodioxine-2-carbonyl chloride is 3663-81-8.

What are the molecular formula and molecular weight of 2,3-Dihydro-1,4-benzodioxine-2-carbonyl chloride?

2,3-Dihydro-1,4-benzodioxine-2-carbonyl chloride has molecular formula C9H7ClO3 and molecular weight 198.60300 g/mol.

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

Last updated:

How to cite: Jingsj. "2,3-Dihydro-1,4-benzodioxine-2-carbonyl chloride (CAS 3663-81-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-43627-2 (accessed 2026-10-22).

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