2,3-dihydro-1,4-benzodioxine-5-carboxylic acid

2,3-二氢-1,4-苯并二噁烷-5-羧酸

Also known as: 1,4-benzodioxan-5-carboxylic acid, 1,4-benzodioxane-5-carboxylic acid, 2,3-dihydro-1,4-benzodioxin-5-carboxylic acid, 2,3-dihydrobenzo[b][1,4]dioxine-5-carboxylic acid, 2,3-ethylenedioxybenzoic acid, 5-carboxy-1,4-benzodioxane, 5-carboxy-2,3-dihydro-1,4-benzodioxin, 2,3-dihydro-1,4-benzodioxane-5-carboxylic acid, 2,3-dihydro-benzo[1,4]dioxine-5-carboxylic acid, 7,10-dioxabicyclo[4.4.0]deca-1,3,5-triene-2-carboxylic acid

2,3-dihydro-1,4-benzodioxine-5-carboxylic acid (CAS 4442-53-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H8O4 and a molecular weight of 180.157 g/mol. It is also known as 1,4-benzodioxan-5-carboxylic acid, 1,4-benzodioxane-5-carboxylic acid and 2,3-dihydro-1,4-benzodioxin-5-carboxylic acid. Key properties include a melting point of 90-94 °C(lit.), a boiling point of 334.1±41.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 139.3±21.1 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4442-53-9
Jingsj CID
J-1516460-3
Molecular Formula
C9H8O4
Chinese Name
2,3-二氢-1,4-苯并二噁烷-5-羧酸
Molecular Weight
180.157 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point90-94 °C(lit.)
Boiling Point334.1±41.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point139.3±21.1 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 2,3-dihydro-1,4-benzodioxine-5-carboxylic acid?

The CAS number of 2,3-dihydro-1,4-benzodioxine-5-carboxylic acid is 4442-53-9.

What are the molecular formula and molecular weight of 2,3-dihydro-1,4-benzodioxine-5-carboxylic acid?

2,3-dihydro-1,4-benzodioxine-5-carboxylic acid has molecular formula C9H8O4 and molecular weight 180.157 g/mol.

Is 2,3-dihydro-1,4-benzodioxine-5-carboxylic acid hazardous?

2,3-dihydro-1,4-benzodioxine-5-carboxylic acid 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. "2,3-dihydro-1,4-benzodioxine-5-carboxylic acid (CAS 4442-53-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1516460-3 (accessed 2026-10-22).

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