Molecular formula: C₁₀Cl₁₂
Molar mass: 545.54 g/mol
Structure of  Mirex (CAS NO.2385-85-5):
                                   
Density: 2.25 g/cm3
Flash Point: 201.9 °C
Index of Refraction: 1.727
Boiling Point: 421.1 °C at 760 mmHg
Vapour Pressure: 6.55E-07 mmHg at 25°C
Flashing point:  2 °C
Storage temp:  Approx 4°C

 Mirex (CAS NO.2385-85-5) was first reported in 1946 by Prins but was not used in pesticide formulations until 1955.
Approximately 250,000 kg was applied to fields between 1962-75 (US NRC, 1978).Its using as a pesticide was banned in 1978. The Stockholm Convention banned production and use of several persistent organic pollutant and it was one of the "dirty dozen."

The insecticidal use of Mirex (CAS NO.2385-85-5) was focused on Southeastern United States to control the imported fire ants Solenopsis saevissima richteri and Solenopsis invicta.

 Mirex (CAS NO.2385-85-5) was produced by the dimerization of Hexachlorocyclopentadiene in the presence of Aluminium chloride.

NTP 10th Report on Carcinogens. IARC Cancer Review: Group 2B IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 7 ,1987,p. 56.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Human Limited Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 20 ,1979,p. 283.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Sufficient Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 20 ,1979,p. 283.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 5 ,1974,p. 203.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) . EPA Genetic Toxicology Program.

Confirmed carcinogen with experimental carcinogenic, tumorigenic, and teratogenic data. Poison by ingestion. Moderately toxic by inhalation and skin contact. An experimental teratogen. Experimental reproductive effects. Mutation data reported. A persistent insecticide that is toxic to non-target species. It can bioaccumulate. See also CHLORINATED HYDROCARBONS, ALIPHATIC.
Hazard Codes: Xn,N,F,Xi
Risk Statements: 21/22-40-50/53-62-63-64-36-20/21/22-11-67-66
11:  Highly Flammable
20:  Harmful by inhalation
21:  Harmful in contact with skin
22:  Harmful if swallowed
36:  Irritating to the eyes
40:  Limited evidence of a carcinogenic effect
50:  Very Toxic to aquatic organisms
53:  May cause long-term adverse effects in the aquatic environment
62:  Possible risk of impaired fertility
63:  Possible risk of harm to the unborn child
64:  May cause harm to breast-fed babies
66:  Repeated exposure may cause skin dryness or cracking
67:  Vapors may cause drowsiness and dizziness
Safety Statements: 13-36/37-46-60-61-36-26-16
13:  Keep away from food, drink and animal feeding stuffs
16:  Keep away from sources of ignition - No smoking
26:  In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36:  Wear suitable protective clothing
37:  Wear suitable gloves
46:  If swallowed, seek medical advice immediately and show this container or label
61:  Avoid release to the environment. Refer to special instructions safety data sheet
62:  If swallowed, do not induce vomiting: seek medical advice immediately and show this container or label

 Mirex trioctyl ammonium chloride ,its cas register number is 2385-85-5.It also can be called Dechlorane 515 ; 1,3,4-metheno-1H-cyclobuta[cd]pentalene, 1,1a,2,2,3,3a,4,5,5,5a,5b,6-dodecachlorooctahydro- ; 1,2,3,4,5,5,6,7,8,9,10,10-Dodecachlorpentacyclo[5.3.0.0~2,6~.0~3,9~.0~4,8~]decan and Dodecachlorooctahydro-1,3,4-metheno-2H-cyclobuta[cd]pentalene .It is highly cumulative and amount depends upon the concentration and duration of exposure.There is evidence of accumulation in aquatic and terrestrial food chains to harmful levels.Although general environmental levels are low, it is widespread in the biotic and abiotic environment. Being lipophilic, it is strongly adsorbed on sediments.