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5-amino-3-methyl-1,2-oxazole-4-carboxylic acid

Also known as: 5-Amino-3-methyl-4-isoxazolecarboxylic acid, 5-Amino-3-methyl-isoxazol-4-carbonsaeure, 5-amino-3-methylisoxazole-4-carboxylic acid, F2124-0461, 3-Methyl-5-aminoisoxazole-4-carboxylic acid

5-amino-3-methyl-1,2-oxazole-4-carboxylic acid (CAS 84661-50-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H6N2O3 and a molecular weight of 142.11300 g/mol. Key properties include a boiling point of 365.9ºC at 760 mmHg, a density of 1.472g/cm3 and a flash point of 175.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
84661-50-7
Jingsj CID
J-11179-5
Molecular Formula
C5H6N2O3
Molecular Weight
142.11300 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point365.9ºC at 760 mmHg
Density1.472g/cm3
Flash Point175.1ºC
Exact Mass142.03800
PSA89.35000
LogP0.84460
Refractive Index1.591

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 5-amino-3-methyl-1,2-oxazole-4-carboxylic acid?

The CAS number of 5-amino-3-methyl-1,2-oxazole-4-carboxylic acid is 84661-50-7.

What are the molecular formula and molecular weight of 5-amino-3-methyl-1,2-oxazole-4-carboxylic acid?

5-amino-3-methyl-1,2-oxazole-4-carboxylic acid has molecular formula C5H6N2O3 and molecular weight 142.11300 g/mol.

What are the upstream and downstream products of 5-amino-3-methyl-1,2-oxazole-4-carboxylic acid?

For 5-amino-3-methyl-1,2-oxazole-4-carboxylic acid, Upstream Products: ethyl 5-amino-3-methyl-1,2-oxazole-4-carboxylate, Ethyl 2-cyanoacetoacetate; Downstream Products: Acetamide, Acetonitrile, 5-Amino-3-methylisoxazole.

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

Last updated:

How to cite: Jingsj. "5-amino-3-methyl-1,2-oxazole-4-carboxylic acid (CAS 84661-50-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11179-5 (accessed 2026-11-09).

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