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Diethyl oxalate

Also known as: Ethyl oxalate, Oxalic acid diethyl ester, Diethyl ethanedioate, Ethanedioic acid diethyl ester, Oxalic ether, Diethyl dicarboxylate, diethyl ester of oxalic acid, diethyl ethane-1,2-dioate, oxalic diethyl ester

Diethyl oxalate (CAS 95-92-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H10O4 and a molecular weight of 146.141 g/mol. Key properties include a melting point of −41 °C(lit.), a boiling point of 185.4±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 75.6±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H314 — Causes severe skin burns and eye damage and H371 — May cause damage to organs. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
95-92-1
Jingsj CID
J-1522788-0
Molecular Formula
C6H10O4
Molecular Weight
146.141 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point−41 °C(lit.)
Boiling Point185.4±0.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point75.6±0.0 °C
Exact Mass146.057907
PSA52.60000
LogP0.73
Additional Property5.03 (vs air)
Vapor Pressure0.7±0.3 mmHg at 25°C
Refractive Index1.411
Additional PropertyMAY DECOMPOSE

GHS Safety & Compliance

Corrosion / Irritant / Health HazardSignal word: Danger
  • H302 — Harmful if swallowed
  • H314 — Causes severe skin burns and eye damage
  • H371 — May cause damage to organs
  • H372 — Causes damage to organs through prolonged exposure

Customs & Trade Information

HS Code2917119000
Summary2917119000 oxalic acid salts and esters VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Diethyl oxalate?

The CAS number of Diethyl oxalate is 95-92-1.

What are the molecular formula and molecular weight of Diethyl oxalate?

Diethyl oxalate has molecular formula C6H10O4 and molecular weight 146.141 g/mol.

Is Diethyl oxalate hazardous?

Diethyl oxalate has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H314 — Causes severe skin burns and eye damage; H371 — May cause damage to organs.

What are the upstream and downstream products of Diethyl oxalate?

For Diethyl oxalate, Upstream Products: Ethanol, Oxalic acid, Diethyl malonate; Downstream Products: Ethyl 3-cyano-3-phenylpyruvate, diethyl 2,4,6-trioxoheptanedioate, Ethyl 2,4-dioxovalerate.

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

Last updated:

How to cite: Jingsj. "Diethyl oxalate (CAS 95-92-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1522788-0 (accessed 2026-11-09).

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