Chemical formula C12H8Cl6O
Systematic name 3,4,5,6,9,9-Hexachloro-1a,2,2a,3,6,6a,7,7a-octahydro-2,7:3,6-dimethanonaphth[2,3b]-oxirene
CAS number 72-20-8
U.S. EPA PC Code 041601
CA DPR Chem Code 262
Molecular mass 380.92 g/mole
Density 1.64 g/cm³ at 20°C
Melting point 226-230°C (above 200°C decomposition)
Boiling point 245 °C [decomposes]
Soil sorption coefficient log Koc  =  4.532 (calculated)
Octanol/Water Partition log Kow  =  3,209-5,339
Solubility in water Sw  = 220-260 μg/l  at 25°C
Vapour pressure
3,6 × 10-5 Pa at 25 °C;
2.7 x 10-7mmHg at 25°C
Henry’s law constant KH = 5.0 x 10-7  atm-m3/mol
Pure: White, odourless, crystalline solid
Technical: light tan colour with faint chemical
Trade Names/Synonyms Compound 269, Endrex, Endrina, ENT-17251, Hexadrin, Isodrin Epoxide, Mendrin, Nendrin

Structure formula of Endrin

3D structure of Endrin

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