Chlorpyrifos

毒死蜱

Also known as: Chlorpyriphos, O,O-diethyl O-(3,5,6-trichloro-2-pyridinyl) phosphorothioate, O,O-diethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate, Lorsban, Dursban, Brodan, Empire, Equity, Eradex, Pyrine, Zidil, suSCon

Chlorpyrifos (CAS 2921-88-2) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C9H11Cl3NO3PS and a molecular weight of 350.586 g/mol. It is also known as Chlorpyriphos, O,O-diethyl O-(3,5,6-trichloro-2-pyridinyl) phosphorothioate and O,O-diethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate. Key properties include a melting point of 42-44°C, a boiling point of 375.9±52.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 181.1±30.7 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2921-88-2
Jingsj CID
J-29604-1
Molecular Formula
C9H11Cl3NO3PS
Chinese Name
毒死蜱
Molecular Weight
350.586 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point42-44°C
Boiling Point375.9±52.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point181.1±30.7 °C

GHS Safety & Compliance

Acute Toxicity / Environmental HazardSignal word: Danger

Frequently Asked Questions

What is the CAS number of Chlorpyrifos?

The CAS number of Chlorpyrifos is 2921-88-2.

What are the molecular formula and molecular weight of Chlorpyrifos?

Chlorpyrifos has molecular formula C9H11Cl3NO3PS and molecular weight 350.586 g/mol.

Is Chlorpyrifos hazardous?

Chlorpyrifos has GHS signal word Danger.

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

Last updated:

How to cite: Jingsj. "Chlorpyrifos (CAS 2921-88-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29604-1 (accessed 2026-10-22).

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