phip 2-amino-1-methyl-6-phenylimidazo4,5-bpyridine molecule. is one of the heterocyclic amines hcas in cooked meat

amine amino atom beef bpyridine carbon carcinogen chemical chemistry compound cooked creatine creatinine doneness formula heterocyclic hydrogen illustration meat methyl model molecule mutagen nitrogen organic phenylimidazo phenylimidazo4 phip pork pyridine science structural structure vector