Isoxathion

恶唑磷

Also known as: Karphos, SI-6711, O,O-Diethyl O-(5-phenyl-3-isoxazolyl)phosphorothioate, O,O-Diethyl O-(5-phenyl-1,2-oxazol-3-yl) phosphorothioate, Phosphorothioic acid, O,O-diethyl O-(5-phenyl-3-isoxazolyl) ester

Isoxathion (CAS 18854-01-8) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C13H16NO4PS and a molecular weight of 313.30900 g/mol. It is also known as Karphos, SI-6711 and O,O-Diethyl O-(5-phenyl-3-isoxazolyl)phosphorothioate. Key properties include a melting point of <25℃, a boiling point of 419.6ºC at 760mmHg, a density of 1.258g/cm3 and a flash point of 207.6ºC. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 18854-01-8
Jingsj CID: J-36135-8
Molecular Formula: C₁₃H₁₆NO₄PS
Chinese Name: 恶唑磷
Molecular Weight: 313.30900 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	<25℃
Boiling Point	419.6ºC at 760mmHg
Density	1.258g/cm3
Flash Point	207.6ºC

GHS Safety & Compliance

Acute Toxicity / Environmental HazardSignal word: Danger

Frequently Asked Questions

What is the CAS number of Isoxathion?

The CAS number of Isoxathion is 18854-01-8.

What are the molecular formula and molecular weight of Isoxathion?

Isoxathion has molecular formula C13H16NO4PS and molecular weight 313.30900 g/mol.

Is Isoxathion hazardous?

Isoxathion has GHS signal word Danger.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Isoxathion (CAS 18854-01-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-36135-8 (accessed 2026-10-24).

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