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Substance Name: Pyridafenthion
RN: 119-12-0
UNII: 98M0VDD56Z
InChIKey: CXJSOEPQXUCJSA-UHFFFAOYSA-N

Classification Codes

  • Agricultural Chemical
  • Insecticide

Molecular Formula

  • C14-H17-N2-O4-P-S

Molecular Weight

  • 340.3383
 
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Names and Synonyms

Name of Substance

  • Pyridafenthion

Synonyms

  • 3(2H)-Pyridazinone, 6-hydroxy-2-phenyl-, O-ester with O,O-diethyl phosphorothioate
  • 4-25-00-00030 (Beilstein Handbook Reference)
  • AI3-23968
  • American cyanamid 12,503
  • BRN 0302741
  • CL 12503
  • EINECS 204-298-5
  • ENT 23,968
  • O,O-Diethyl O-(2,3-dihydro-3-oxo-2-phenyl-6-pyridazinyl)phosphorothioate
  • O,O-Diethylphosphorothioate, O-ester with 6-hydroxy-2-phenyl-3(2H)-pyridazinone
  • O-(1,6-Dihydro-6-oxo-1-phenylpyridazin-3-yl) O,O-diethyl phosphorothioate
  • Ofnack
  • Ofnak
  • Ofunack
  • Pyridafenthion
  • Pyridaphenthion
  • UNII-98M0VDD56Z

Systematic Names

  • O,O-Diethyl O-(1,6-dihydro-6-oxo-1-phenylpyridazin-3-yl) thiophosphate
  • Phosphorothioic acid, O,O-diethyl ester, O-ester with 6-hydroxy-2-phenyl-3(2H)pyridazinone
  • Phosphorothioic acid, O-(1,6-dihydro-6-oxo-1-phenyl-3-pyridazinyl) O,O-diethyl ester

Registry Numbers

CAS Registry Number

  • 119-12-0

FDA UNII

  • 98M0VDD56Z

System Generated Number

  • 0000119120

Structure Descriptors

InChI

1S/C14H17N2O4PS/c1-3-18-21(22,19-4-2)20-13-10-11-14(17)16(15-13)12-8-6-5-7-9-12/h5-11H,3-4H2,1-2H3

InChIKey

CXJSOEPQXUCJSA-UHFFFAOYSA-N

Smiles

CCOP(=S)(OCC)Oc1ccc(=O)n(n1)c2ccccc2

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
dog LD50 oral > 12gm/kg (12000mg/kg)   Japan Pesticide Information. Vol. (33), Pg. 9, 1977.
dog LD50 skin > 20gm/kg (20000mg/kg)   Japan Pesticide Information. Vol. (33), Pg. 9, 1977.
guinea pig LD50 oral 513mg/kg (513mg/kg) SENSE ORGANS AND SPECIAL SENSES: OTHER: EYE

SENSE ORGANS AND SPECIAL SENSES: OTHER CHANGES: OLFACTION

GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA"
Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 53(11), Pg. 66, 1988.
mouse LD50 intraperitoneal 64mg/kg (64mg/kg)   "Pesticide Index," Frear, E.H., ed., State College, PA, College Science Pub., 1969Vol. 4, Pg. 170, 1969.
mouse LD50 oral 237mg/kg (237mg/kg) SENSE ORGANS AND SPECIAL SENSES: OTHER: EYE

SENSE ORGANS AND SPECIAL SENSES: OTHER CHANGES: OLFACTION

GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA"
Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 53(11), Pg. 66, 1988.
mouse LD50 skin 660mg/kg (660mg/kg)   Japan Pesticide Information. Vol. (33), Pg. 9, 1977.
mouse LD50 subcutaneous 370mg/kg (370mg/kg)   Japan Pesticide Information. Vol. (33), Pg. 9, 1977.
quail LD50 oral 68400ug/kg (68.4mg/kg)   Japan Pesticide Information. Vol. (33), Pg. 9, 1977.
rabbit LD50 oral 4800mg/kg (4800mg/kg)   Japan Pesticide Information. Vol. (33), Pg. 9, 1977.
rabbit LD50 skin > 2gm/kg (2000mg/kg)   Japan Pesticide Information. Vol. (33), Pg. 9, 1977.
rat LC50 inhalation 1100mg/m3/4H (1100mg/m3)   Pesticide Manual. Vol. 9, Pg. 285, 1991.
rat LD50 intraperitoneal 105mg/kg (105mg/kg)   Japan Pesticide Information. Vol. (33), Pg. 9, 1977.
rat LD50 oral 424mg/kg (424mg/kg)   Yakkyoku. Pharmacy. Vol. 37, Pg. 1621, 1986.
rat LD50 skin 2100mg/kg (2100mg/kg)   Farm Chemicals Handbook. Vol. -, Pg. C223, 1991.
rat LD50 subcutaneous 305mg/kg (305mg/kg)   Japan Pesticide Information. Vol. (33), Pg. 9, 1977.

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point 55 deg C   EXP
log P (octanol-water) 3.2 (none)   EXP
Water Solubility 100 mg/L 20 EXP
Vapor Pressure 1.10E-08 mm Hg 20 EXP
Henry's Law Constant 4.93E-11 atm-m3/mole 25 EST
Atmospheric OH Rate Constant 1.15E-10 cm3/molecule-sec 25 EST

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