an analysis of a commercial sample of symphyti radix originating from poland with a total alkaloid content of 0.07 % revealed the presence of 7 pyrrolizidine alkaloid-n-oxides : 7-acetyl intermedine , 7-acetyl lycopsamine as the main constituents and lycopsamine , intermedine , symphytine and traces of 2 further not yet identified alkaloids .
C0034335
pyrrolizidine
C0002062
alkaloids