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Substance Name: Pyrazoxyfen [ISO:BSI]
RN: 71561-11-0
UNII: FS6C1PT8FV
InChIKey: FKERUJTUOYLBKB-UHFFFAOYSA-N

Classification Codes

  • Agricultural Chemical
  • Herbicide
  • Reproductive Effect

Molecular Formula

  • C20-H16-Cl2-N2-O3

Molecular Weight

  • 403.263
 
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Names and Synonyms

Name of Substance

  • Pyrazoxyfen [ISO:BSI]

Synonyms

  • 2-((4-(2,4-Dichlorobenzoyl)-1,3-dimethyl-1H-pyrazol-5-yl)oxy)-1-phenylethanone
  • 2-(4-(2,4-Dichlorobenzoyl)-1,3-dimethylpyrazol-5-yloxy)acetophenone
  • Paicer
  • Pyrazoxyfen
  • SL 49
  • UNII-FS6C1PT8FV

Systematic Name

  • Ethanone, 2-((4-(2,4-dichlorobenzoyl)-1,3-dimethyl-1H-pyrazol-5-yl)oxy)-1-phenyl-

Registry Numbers

CAS Registry Number

  • 71561-11-0

FDA UNII

  • FS6C1PT8FV

System Generated Number

  • 0071561110

Structure Descriptors

InChI

1S/C20H16Cl2N2O3/c1-12-18(19(26)15-9-8-14(21)10-16(15)22)20(24(2)23-12)27-11-17(25)13-6-4-3-5-7-13/h3-10H,11H2,1-2H3

InChIKey

FKERUJTUOYLBKB-UHFFFAOYSA-N

Smiles

Clc1c(ccc(c1)Cl)C(=O)c1c(C)nn(C)c1OCC(=O)c1ccccc1

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intraperitoneal 659mg/kg (659mg/kg)   Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. Vol. 13, Pg. 167, 1988.
mouse LD50 oral > 8450mg/kg (8450mg/kg)   Japan Pesticide Information. Vol. (45), Pg. 24, 1984.
mouse LD50 subcutaneous > 8450mg/kg (8450mg/kg)   Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. Vol. 13, Pg. 167, 1988.
rat LC50 inhalation > 280mg/m3 (280mg/m3)   Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. Vol. 13, Pg. 167, 1988.
rat LD50 intraperitoneal 308mg/kg (308mg/kg)   Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. Vol. 13, Pg. 167, 1988.
rat LD50 oral 1644mg/kg (1644mg/kg)   Japan Pesticide Information. Vol. (45), Pg. 24, 1984.
rat LD50 skin > 5gm/kg (5000mg/kg)   Japan Pesticide Information. Vol. (45), Pg. 24, 1984.
rat LD50 subcutaneous 4920mg/kg (4920mg/kg)   Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. Vol. 13, Pg. 167, 1988.

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point 111.5 deg C   EXP
log P (octanol-water) 3.69 (none)   EXP
Water Solubility 900 mg/L 20 EXP
Vapor Pressure 3.60E-07 mm Hg 25 EXP
Henry's Law Constant 2.12E-10 atm-m3/mole 25 EST
Atmospheric OH Rate Constant 4.32E-11 cm3/molecule-sec 25 EST

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