male albino mice in groups of eight were each given single doses , either by gavage or by intraperitoneal injection , of either technical chlordane ( 50 or 100 mg/kg ) , hcs-3260 ( 50 or 100 mg/kg ) , or heptachlor : heptachlor epoxide ( 25:75 ) ( 7.5 or 15 mg/kg ) .
C0019219
heptachlor
C0019220
heptachlor epoxide