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For the form of ice, see Aufeis.
Skeletal formula of Naled
Ball-and-stick model of the Naled molecule
IUPAC name
Dimethyl-1,2-dibromo-2,2-dichlorethyl phosphate
Other names
Dibrom, 1,2-Dibromo-2,2-dichloroethyl dimethyl phosphate
ChemSpider 4267
Jmol 3D model Interactive image
Molar mass 380.8 g/mol[1]
Appearance Colorless to white solid or straw-colored liquid[1]
Density 1.96 mg/mL (25°C)[1]
Melting point 27 °C; 80 °F; 300 K [1]
Boiling point decomposes[1]
Vapor pressure 0.0002 mmHg (20°C)[1]
Safety data sheet MSDS
Flash point noncombustible [1]
Lethal dose or concentration (LD, LC):
156 mg/kg (inhaled, mouse)
222 mg/kg (oral, mouse)
160 mg/kg (oral, rat)
430 mg/kg (oral, mammal)
250 mg/kg (oral, rat)
330 mg/kg (oral, mouse)[2]
US health exposure limits (NIOSH):
PEL (Permissible)
TWA 3 mg/m3 [skin][1]
REL (Recommended)
TWA 3 mg/m3 [skin][1]
IDLH (Immediate danger)
200 mg/m3[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Naled (Dibrom) is an organophosphate insecticide.[3][4] Its chemical name is dimethyl 1,2-dibromo-2,2-dichloroethylphosphate.


Naled is used primarily to control adult mosquitos. It is also registered to control black flies, and leaf eating insects on a variety of fruits, vegetables, and nuts. Approximately 70% of naled in USA is used in mosquito control, and approximately 30% in agriculture.[5]


Naled can cause cholinesterase inhibition in humans, which in turn can overstimulate the nervous system causing nausea, dizziness, confusion, and at very high exposures, respiratory paralysis and death.[5]


  1. ^ a b c d e f g h i j k "NIOSH Pocket Guide to Chemical Hazards #0225". National Institute for Occupational Safety and Health (NIOSH). 
  2. ^ "Dimethyl-1,2-dibromo-2,2-dichlorethyl phosphate (Naled)". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH). 4 December 2014. Retrieved 17 March 2015. 
  3. ^ "Naled Facts". Pesticides Reregistration. Environmental Protection Agency. Retrieved 16 November 2011. 
  4. ^ "Naled". Extoxnet. Cornwell University. Retrieved 16 November 2011. 
  5. ^ a b Naled Facts. (PDF) Environmental Protection Agency - USA. January 2002.