1,4-Dioxane-2,5-dione

Also known as: glycolide, Glycolide, Glycollide, 1,4-dioxane-2,5-dione, 1,4-Dioxan-2,5-dione, p-Dioxane-2,5-dione, diglycolide, 2,5-p-dioxanedione, PURASORB(R) G

1,4-Dioxane-2,5-dione (CAS 502-97-6) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C4H4O4 and a molecular weight of 116.07200 g/mol. Key properties include a melting point of 81-83°C, a boiling point of 322.5ºC at 760 mmHg, a density of 1.423 g/cm3 and a flash point of 181.5ºC. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 502-97-6
Jingsj CID: J-32166-8
Molecular Formula: C₄H₄O₄
Molecular Weight: 116.07200 g/mol
Category: Esters
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	81-83°C
Boiling Point	322.5ºC at 760 mmHg
Density	1.423 g/cm3
Flash Point	181.5ºC
Exact Mass	116.01100
PSA	52.60000
Refractive Index	1.45

GHS Safety & Compliance

IrritantSignal word: Warning

H302 — Harmful if swallowed
H319 — Causes serious eye irritation

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. 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 1,4-Dioxane-2,5-dione?

The CAS number of 1,4-Dioxane-2,5-dione is 502-97-6.

What are the molecular formula and molecular weight of 1,4-Dioxane-2,5-dione?

1,4-Dioxane-2,5-dione has molecular formula C4H4O4 and molecular weight 116.07200 g/mol.

Is 1,4-Dioxane-2,5-dione hazardous?

1,4-Dioxane-2,5-dione has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H319 — Causes serious eye irritation.

What are the upstream and downstream products of 1,4-Dioxane-2,5-dione?

For 1,4-Dioxane-2,5-dione, Upstream Products: Glycolic acid, 1-Hexanol, 1-Butanol; Downstream Products: N,N-Diethyl-2-hydroxyacetamide, Ethylene glycol, limonene.

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

Last updated: 8/21/2026

How to cite: Jingsj. "1,4-Dioxane-2,5-dione (CAS 502-97-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32166-8 (accessed 2026-11-06).

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