5-Isopropylisoxazole-4-carboxylic acid

5-异丙基异恶唑-4-甲酸

Also known as: 4-Isoxazolecarboxylic acid, 5-(1-methylethyl)-, 4-Isoxazolecarboxylicacid,5-(1-methylethyl)-(9CI), 5-(Propan-2-yl)-1,2-oxazole-4-carboxylic acid, 5-ISOPROPYL-ISOXAZOLE-4-CARBOXYLIC ACID, 5-Isopropyl-4-isoxazolecarboxylic acid, 5-propan-2-yl-1,2-oxazole-4-carboxylic acid

5-Isopropylisoxazole-4-carboxylic acid (CAS 134541-05-2) 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 4-Isoxazolecarboxylic acid, 5-(1-methylethyl)-, 4-Isoxazolecarboxylicacid,5-(1-methylethyl)-(9CI) and 5-(Propan-2-yl)-1,2-oxazole-4-carboxylic acid. Key properties include a melting point of 78-82ºC(lit.), a boiling point of 291.958ºC at 760 mmHg, a density of 1.212g/cm3 and a flash point of 130.372ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
134541-05-2
Jingsj CID
J-1173822-4
Molecular Formula
C7H9NO3
Chinese Name
5-异丙基异恶唑-4-甲酸
Molecular Weight
155.15100 g/mol
Category
Organic Acids
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point78-82ºC(lit.)
Boiling Point291.958ºC at 760 mmHg
Density1.212g/cm3
Flash Point130.372ºC

Frequently Asked Questions

What is the CAS number of 5-Isopropylisoxazole-4-carboxylic acid?

The CAS number of 5-Isopropylisoxazole-4-carboxylic acid is 134541-05-2.

What are the molecular formula and molecular weight of 5-Isopropylisoxazole-4-carboxylic acid?

5-Isopropylisoxazole-4-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-4-carboxylic acid (CAS 134541-05-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1173822-4 (accessed 2026-10-25).

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