Assertion: bracken's carcinogen | /r/HasProperty | the dienone
Facets:
Source sentences:
text: They can make the natural enantiomer from off the shelf ingredients including succinic anhydride in 22 steps and convert it to the so-called ultimate carcinogen - the dienone in mild alkali.
text: Ptaquiloside, contains the ultimate carcinogen, the dienone 2, which under weak alkaline conditions, has been reported to have a potent alkylating action against amino acids and nucleic acid bases and, thus, leading to deoxyribonucleic acid (DNA) cleavage (Kigoshi et al. 1995).