2,3-dihydro-1,4-benzodioxine-5-carboxylic acid
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. 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. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 4442-53-9
- Jingsj CID
- J-1516460-0
- Molecular Formula
- C9H8O4
- Molecular Weight
- 180.157 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 90-94 °C(lit.) |
|---|---|
| Boiling Point | 334.1±41.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 139.3±21.1 °C |
| Exact Mass | 180.042252 |
| PSA | 55.76000 |
| LogP | 1.46 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.587 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2932999099 |
|---|---|
| Summary | 2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
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 and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 2,3-dihydro-1,4-benzodioxine-5-carboxylic acid?
For 2,3-dihydro-1,4-benzodioxine-5-carboxylic acid, Upstream Products: 2,3-Dihydro-1,4-benzodioxine-5-carbaldehyde, 2,3-Dihydroxybenzoic acid, 1,2-Dibromoethane; Downstream Products: 2,3-dihydro-1,4-benzodioxine-5-carboxamide, 2,3-Dihydro-1,4-benzodioxine-5-carbonyl chloride, Eltoprazine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,3-dihydro-1,4-benzodioxine-5-carboxylic acid (CAS 4442-53-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1516460-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.