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Ethyl isoxazole-3-carboxylate

Also known as: Ethyl 1,2-oxazole-3-carboxylate, Ethyl 3-isoxazolecarboxylate, 3-Isoxazolecarboxylic acid ethyl ester, 3-Ethoxycarbonylisoxazole, 3-Carboethoxyisoxazole, AKOS PAO-1389, Isoxazole-3-carboxylic acid ethyl ester

Ethyl isoxazole-3-carboxylate (CAS 3209-70-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H7NO3 and a molecular weight of 141.125 g/mol. Key properties include a boiling point of 219.5±13.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 86.6±19.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3209-70-9
Jingsj CID
J-1339380-1
Molecular Formula
C6H7NO3
Molecular Weight
141.125 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point219.5±13.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point86.6±19.8 °C
Exact Mass141.042587
PSA52.33000
LogP0.59
Vapor Pressure0.1±0.4 mmHg at 25°C
Refractive Index1.464

Customs & Trade Information

HS Code2934999090
Summary2934999090. 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 Ethyl isoxazole-3-carboxylate?

The CAS number of Ethyl isoxazole-3-carboxylate is 3209-70-9.

What are the molecular formula and molecular weight of Ethyl isoxazole-3-carboxylate?

Ethyl isoxazole-3-carboxylate has molecular formula C6H7NO3 and molecular weight 141.125 g/mol.

What are the upstream and downstream products of Ethyl isoxazole-3-carboxylate?

For Ethyl isoxazole-3-carboxylate, Upstream Products: Ethyl nitroacetate, Acetylene, (E)-Ethyl 4-oxobut-2-enoate; Downstream Products: ethyl 1,3-oxazole-2-carboxylate, 3-Isoxazolecarboxamide, Isoxazole-3-carbaldehyde.

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 isoxazole-3-carboxylate (CAS 3209-70-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1339380-1 (accessed 2026-11-09).

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