Assertion: benzophenanthridine alkaloid | /r/CapableOf | maintain free amine structure
Facets:
value: over a wide ph
type: OTHER
Source sentences:
text: Derivatives, such as synthetically modified benzophenanthridine alkaloids, synthetically formed benzophenanthridine alkaloids, polymer products, and especially those derivatives which will maintain the free amine structure over a wide pH, may also be used.