CAS 28044-83-9 appears in our catalog under these names: trans-Heptachlor-endo-epoxide (isomer A), trans-Heptachlor-endo-epoxide (isomer A) 10 µg/mL in Cyclohexane, trans-Heptachlor-endo-epoxide (Isomer A) 100 µg/mL in Cyclohexane, trans-Heptachlor-endo-epoxide (Isomer A) 100 µg/mL in Methanol, trans-Heptachlor epoxide. Offered by: Dr. Ehrenstorfer, Biosynth, Sigma-Aldrich, HPC Standards. Available pack sizes: 10mg, 10ml, 1ml, 50mg, 25MG, 1x10mg, 1x10ml, 1x5ml.