Chlorpyrifos

CAS Registry Number®

2921-88-2
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CAS Name

Chlorpyrifos

Molecular Formula

C9H11Cl3NO3PS

Molecular Mass

350.59

Cite this Page

Chlorpyrifos.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=2921-88-2 (retrieved 2024-07-12) (CAS RN: 2921-88-2).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Melting Point (1)

    41-42 °C
  • Density (2)

    1.398 g/cm³ @ Temp: 43.5 °C

Source(s)

  • (1) Hazardous Substances Data Bank data were obtained from the National Library of Medicine (US)
  • (2) International Chemical Safety Cards data were obtained from the National Institute for Occupational Safety and Health (US)

Other Names and Identifiers

InChI

InChI=1S/C9H11Cl3NO3PS/c1-3-14-17(18,15-4-2)16-9-7(11)5-6(10)8(12)13-9/h5H,3-4H2,1-2H3

InChIKey

InChIKey=SBPBAQFWLVIOKP-UHFFFAOYSA-N

SMILES

P(OC1=C(Cl)C=C(Cl)C(Cl)=N1)(OCC)(OCC)=S

Canonical SMILES

S=P(OC1=NC(Cl)=C(Cl)C=C1Cl)(OCC)OCC

Other Names for this Substance

  • Phosphorothioic acid, O,O-diethyl O-(3,5,6-trichloro-2-pyridinyl) ester
  • Phosphorothioic acid, O,O-diethyl O-(3,5,6-trichloro-2-pyridyl) ester
  • ENT 27311
  • O,O-Diethyl O-(3,5,6-trichloro-2-pyridyl) phosphorothioate
  • Dursban

Deleted or Replaced CAS Registry Numbers

12768-48-8, 39475-55-3