Molecular Formula: C₉H₄Cl₆O₂
Molecular Weight: 356.83g/mol
Freely Rotating Bonds: 0
Polar Surface Area: 26.3 Å²
Index of Refraction: 1.636
Molar Refractivity: 67.88 cm³
Molar Volume: 189.2 cm³
Polarizability: 26.91× 10^-24cm³
Surface Tension: 59.6 dyne/cm
Density: 1.88 g/cm³
Flash Point: 190.3 °C
Enthalpy of Vaporization: 70.17 kJ/mol
Boiling Point: 444 °C at 760 mmHg
Vapour Pressure: 4.44E-08 mmHg at 25°C
 The Cas Register Number of Endosulfan lacton is 3868-61-9 .The chemical synonyms of Endosulfan lacton (CAS No.3868-61-9) are 1,4,5,6,7,7-Hexachloro-3-(hydroxymethyl)-5-norbornene-2-carboxylcacigam ; 3A,4,7,7a-Tetrahydro-4,5,6,7,8,8-hexachloro-4,7-methanoisobenzofuran-1(3h)-o ; 4,7-Methanoisobenzofuran-1(3h)-one,3a,4,7,7a-tetrahydro-4,5,6,7,8,8-hexachloro ; Endolacton ; Ma-lactone ; 5-Hydroxymethyl-1,2,3,4,7,7-hexachlorobicyclo[2.2.1]-2-heptene-6-carbonic acid ; Endosulfan-lacton ; Endosulfan lactone .Product categories of Endosulfan lacton (CAS No.3868-61-9) are Alpha sort ; Cyclodienespesticides&Metabolites ; E-Galphabetic ; Acaricidespesticides ; Cyclodienesalphabetic ; E ; Ea - eoenvironmental standards ; Insecticides ; Metabolites ; Pesticides ; Pesticides&Metabolites .The molecular structure of Endosulfan lacton (CAS No.3868-61-9) is.

A poison by ingestion. When heated to decomposition it emits toxic vapors of Cl⁻.
Hazard Codes: T N  
Risk Statements: 25-51/53
R25: Toxic if swallowed.
R51/53: Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements: 45-60
S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S60: This material and its container must be disposed of as hazardous waste.
RIDADR: UN 2811 6.1/PG 3
RTECS: PC1355000