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Substance Name: Pyrazothion
RN: 108-35-0
UNII: L0HUM41IX2
InChIKey: NKADQNIAHIXOIZ-UHFFFAOYSA-N

Classification Codes

  • Acaricide
  • Agricultural Chemical
  • Insecticide

Molecular Formula

  • C8-H15-N2-O3-P-S

Molecular Weight

  • 250.2575
 
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Names and Synonyms

Results Name

  • Pyrazothion

Name of Substance

  • Pyrazothion

Synonyms

  • 4-23-00-02424 (Beilstein Handbook Reference)
  • BRN 0019355
  • Diethyl 3-methyl-5-pyrazolyl thionophosphate
  • ENT 25,557-X
  • G-24027
  • Geigy G-24027
  • Methylpyrazolyl diethylthiophosphate
  • O,O-Diethyl O-(3-methyl-5-pyrazolyl) phosphorothionate
  • Phosphorothioic acid, O,O-diethyl O-(3-methyl-1H-pyrazol-5-yl) ester
  • Pyrazothion
  • UNII-L0HUM41IX2

Systematic Name

  • Phosphorothioic acid, O,O-diethyl-O-(5-methyl-3-pyrazolyl) ester

Registry Numbers

CAS Registry Number

  • 108-35-0

FDA UNII

  • L0HUM41IX2

System Generated Number

  • 0000108350

Structure Descriptors

InChI

1S/C8H15N2O3PS/c1-4-11-14(15,12-5-2)13-8-6-7(3)9-10-8/h6H,4-5H2,1-3H3,(H,9,10)

InChIKey

NKADQNIAHIXOIZ-UHFFFAOYSA-N

Smiles

CCOP(=S)(OCC)Oc1cc(C)[nH]n1

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 oral 12mg/kg (12mg/kg)   Agricultural Research Service, USDA Information Memorandum. Vol. 20, Pg. 17, 1966.
rat LD50 oral 12mg/kg (12mg/kg)   World Review of Pest Control. Vol. 9, Pg. 119, 1970.

Physical Properties

Physical Property Value Units Temp (deg C) Source
log P (octanol-water) 2.530 (none)   EST
Water Solubility 164 mg/L 25 EST
Vapor Pressure 1.47E-05 mm Hg 25 EST
Henry's Law Constant 5.68E-08 atm-m3/mole 25 EST
Atmospheric OH Rate Constant 2.66E-10 cm3/molecule-sec 25 EST

Physical property data is provided to ChemIDplus by SRC, Inc.