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5-(4-Chlorophenyl)isoxazole-3-carboxylic acid

5-(4-氯苯基)异噁唑-3-羧酸

Also known as: 5-(4-Chlorophenyl)-1,2-oxazole-3-carboxylic acid, 5-(4-Chlorophenyl)-3-isoxazolecarboxylic acid, 3-Isoxazolecarboxylic acid, 5-(4-chlorophenyl)-, 5-(4-Chlorophenyl)-3-isoxazolecarboxylic acid, 5-(4-Chlorophenyl)-1,2-oxazole-3-carboxylic acid

5-(4-Chlorophenyl)isoxazole-3-carboxylic acid (CAS 33282-22-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H6ClNO3 and a molecular weight of 223.61300 g/mol. It is also known as 5-(4-Chlorophenyl)-1,2-oxazole-3-carboxylic acid, 5-(4-Chlorophenyl)-3-isoxazolecarboxylic acid and 3-Isoxazolecarboxylic acid, 5-(4-chlorophenyl)-. Key properties include a melting point of 200.0 °C (dec.)(lit.), a boiling point of 457.3ºC at 760mmHg, a density of 1.440±0.06 g/cm3(Predicted) and a flash point of 230.4ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
33282-22-3
Jingsj CID
J-26347-2
Molecular Formula
C10H6ClNO3
Chinese Name
5-(4-氯苯基)异噁唑-3-羧酸
Molecular Weight
223.61300 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point200.0 °C (dec.)(lit.)
Boiling Point457.3ºC at 760mmHg
Density1.440±0.06 g/cm3(Predicted)
Flash Point230.4ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 5-(4-Chlorophenyl)isoxazole-3-carboxylic acid?

The CAS number of 5-(4-Chlorophenyl)isoxazole-3-carboxylic acid is 33282-22-3.

What are the molecular formula and molecular weight of 5-(4-Chlorophenyl)isoxazole-3-carboxylic acid?

5-(4-Chlorophenyl)isoxazole-3-carboxylic acid has molecular formula C10H6ClNO3 and molecular weight 223.61300 g/mol.

Is 5-(4-Chlorophenyl)isoxazole-3-carboxylic acid hazardous?

5-(4-Chlorophenyl)isoxazole-3-carboxylic acid has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "5-(4-Chlorophenyl)isoxazole-3-carboxylic acid (CAS 33282-22-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-26347-2 (accessed 2026-10-23).

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