EPN (insecticide)

EPN
Names
Preferred IUPAC name
O-Ethyl O-(4-nitrophenyl) phenylphosphonothioate
Other names
Ethyl p-nitrophenyl thionobenzenephosphonate, Ethyl p-nitrophenyl benzenethionophosphonate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.016.615 Edit this at Wikidata
UNII
  • InChI=1S/C14H14NO4PS/c1-2-18-20(21,14-6-4-3-5-7-14)19-13-10-8-12(9-11-13)15(16)17/h3-11H,2H2,1H3
    Key: AIGRXSNSLVJMEA-UHFFFAOYSA-N
  • InChI=1/C14H14NO4PS/c1-2-18-20(21,14-6-4-3-5-7-14)19-13-10-8-12(9-11-13)15(16)17/h3-11H,2H2,1H3
    Key: AIGRXSNSLVJMEA-UHFFFAOYAT
  • CCOP(=S)(c1ccccc1)Oc2ccc(cc2)[N+]([O-])=O
Properties
C14H14NO4PS
Molar mass 323.30 g·mol−1
Appearance Light yellow crystalline powder[1]
Density 1.3 g/cm3[1]
Melting point 36 °C (97 °F; 309 K)[1]
Boiling point 215°C at 0.667kPa
Insoluble[1]
Hazards
Flash point noncombustible[2]
Lethal dose or concentration (LD, LC):
20 mg/kg (oral, dog)
8 mg/kg (oral, rat)
36 mg/kg (oral, rat)
7 mg/kg (oral, rat)
12.2 mg/kg (oral, mouse)[3]
NIOSH (US health exposure limits):
PEL (Permissible)
 TWA 0.5 mg/m3 [skin][2]
REL (Recommended)
 TWA 0.5 mg/m3 [skin][2]
IDLH (Immediate danger)
 5 mg/m3[2]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

EPN is an insecticide of the phosphonothioate class. It is used against pests such as European corn borer, rice stem borer, bollworm, tobacco budworm, and boll weevil.[4]

  1. ^ a b c d "EPN International Chemical Safety Card". National Institute for Occupational Safety and Health. Archived from the original on 2017-12-05. Retrieved 2017-09-09.
  2. ^ a b c d NIOSH Pocket Guide to Chemical Hazards. "#0255". National Institute for Occupational Safety and Health (NIOSH).
  3. ^ "EPN". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH). 4 December 2014. Retrieved 19 March 2015.
  4. ^ "EPN Chemical Profile". Pesticide Management Education Program, Cornell University.