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Ethyl diazoacetate

Also known as: Diazoacetic acid ethyl ester, Diazoacetic ester, Ethyl diazoethanoate, DAAE, Ethoxycarbonyldiazomethane, NSC 79147

Ethyl diazoacetate (CAS 623-73-4) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C4H6N2O2 and a molecular weight of 114.103 g/mol. Key properties include a melting point of −22 °C(lit.), a boiling point of 140-141 °C720 mm Hg(lit.), a density of 1.085 g/mL at 25 °C(lit.) and a flash point of 46.1 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour, H242 and H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
623-73-4
Jingsj CID
J-18072-8
Molecular Formula
C4H6N2O2
Molecular Weight
114.103 g/mol
Category
Solvents
Last updated
11/2/2026

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Physicochemical Properties

Melting Point−22 °C(lit.)
Boiling Point140-141 °C720 mm Hg(lit.)
Density1.085 g/mL at 25 °C(lit.)
Flash Point46.1 °C
Exact Mass114.042931
PSA63.69000
LogP-0.57
Refractive Indexn20/D 1.46(lit.)

GHS Safety & Compliance

Flammable / Irritant / Health HazardSignal word: Warning
  • H226 — Flammable liquid and vapour
  • H242
  • H302 — Harmful if swallowed
  • H351 — Suspected of causing cancer

Customs & Trade Information

HS Code2927000090
Summary2927000090 other diazo-, azo- or azoxy-compounds。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Ethyl diazoacetate?

The CAS number of Ethyl diazoacetate is 623-73-4.

What are the molecular formula and molecular weight of Ethyl diazoacetate?

Ethyl diazoacetate has molecular formula C4H6N2O2 and molecular weight 114.103 g/mol.

Is Ethyl diazoacetate hazardous?

Ethyl diazoacetate has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H242; H302 — Harmful if swallowed.

What are the upstream and downstream products of Ethyl diazoacetate?

For Ethyl diazoacetate, Upstream Products: Glycine ethyl ester, Glycine ethyl ester hydrochloride, Ethyl acetoacetate; Downstream Products: Ethyl 2-methyl-1H-indole-3-carboxylate, ethyl 3-(4-cyanophenyl)-3-oxopropanoate, Ethyl 2-oxo-1-cyclooctanecarboxylate.

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

Last updated:

How to cite: Jingsj. "Ethyl diazoacetate (CAS 623-73-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-18072-8 (accessed 2026-11-07).

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