5-Isopropylisoxazole-3-carboxylic acid

5-异丙基异恶唑-3-羧酸

Also known as: 5-isopropyl-3-isoxazolecarboxylic acid, 5-propan-2-yl-1,2-oxazole-3-carboxylic acid, 3-isoxazolecarboxylic acid, 5-(1-methylethyl)-

5-Isopropylisoxazole-3-carboxylic acid (CAS 89776-74-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H9NO3 and a molecular weight of 155.15100 g/mol. It is also known as 5-isopropyl-3-isoxazolecarboxylic acid, 5-propan-2-yl-1,2-oxazole-3-carboxylic acid and 3-isoxazolecarboxylic acid, 5-(1-methylethyl)-. Key properties include a melting point of 69-73ºC, a boiling point of 298.2ºC at 760 mmHg and a density of 1.211 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
89776-74-9
Jingsj CID
J-1344565-8
Molecular Formula
C7H9NO3
Chinese Name
5-异丙基异恶唑-3-羧酸
Molecular Weight
155.15100 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point69-73ºC
Boiling Point298.2ºC at 760 mmHg
Density1.211 g/cm3

Frequently Asked Questions

What is the CAS number of 5-Isopropylisoxazole-3-carboxylic acid?

The CAS number of 5-Isopropylisoxazole-3-carboxylic acid is 89776-74-9.

What are the molecular formula and molecular weight of 5-Isopropylisoxazole-3-carboxylic acid?

5-Isopropylisoxazole-3-carboxylic acid has molecular formula C7H9NO3 and molecular weight 155.15100 g/mol.

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

Last updated:

How to cite: Jingsj. "5-Isopropylisoxazole-3-carboxylic acid (CAS 89776-74-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1344565-8 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.