scabrin

\\ˈskabrə̇n\ noun (-s)

Etymology: New Latin scabra (specific epithet of Heliopsis scabra) (from Latin, feminine of scaber rough) + English -in — more at scabrous

: an insecticidal material obtained from the roots of an oxeye (Heliopsis scabra) that contains an isobutyl-amide of a mixture of unsaturated fatty acids