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Methyl 5-methylisoxazole-3-carboxylate

Also known as: Methyl 5-methyl-1,2-oxazole-3-carboxylate, 5-Methylisoxazole-3-carboxylic acid methyl ester, 5-Methyl-3-isoxazolecarboxylic acid methyl ester, Methyl 5-methyl-3-isoxazolecarboxylate, 3-Isoxazolecarboxylic acid, 5-methyl-, methyl ester, BUTTPARK 48\06-49, EINECS 243-311-9, MFCD00015895, METHYL 5-METHYL-3-ISOXAZOLECARBOXYLATE, METHYL 5-METHYLISOXAZOLE-3-CARBOXYLATE, METHYL 5-METHYLISOXAZOLYL-3-CARBOXYLATE, 5-Methyl-isoxazol-3-carbonsaeure-methylester, methyl-5-methylisoxazole-3-carboxylate

Methyl 5-methylisoxazole-3-carboxylate (CAS 19788-35-3) 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 melting point of 90-92 °C, a boiling point of 230.9±20.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 93.4±21.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
19788-35-3
Jingsj CID
J-3456-0
Molecular Formula
C6H7NO3
Molecular Weight
141.125 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point90-92 °C
Boiling Point230.9±20.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point93.4±21.8 °C
Exact Mass141.042587
PSA52.33000
LogP0.52
Vapor Pressure0.1±0.5 mmHg at 25°C
Refractive Index1.468

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 Methyl 5-methylisoxazole-3-carboxylate?

The CAS number of Methyl 5-methylisoxazole-3-carboxylate is 19788-35-3.

What are the molecular formula and molecular weight of Methyl 5-methylisoxazole-3-carboxylate?

Methyl 5-methylisoxazole-3-carboxylate has molecular formula C6H7NO3 and molecular weight 141.125 g/mol.

What are the upstream and downstream products of Methyl 5-methylisoxazole-3-carboxylate?

For Methyl 5-methylisoxazole-3-carboxylate, Upstream Products: Methyl acetylpyruvate; Downstream Products: Isocarboxazid, (5-Methylisoxazol-3-yl)methanol, 5-Methyl-1,2-oxazole-3-carbohydrazide.

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

Last updated:

How to cite: Jingsj. "Methyl 5-methylisoxazole-3-carboxylate (CAS 19788-35-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3456-0 (accessed 2026-11-09).

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