nitrogenous compounds such as guanidine , ureide , secondary amines and polyamines were pyrolysed at 300 , 400 , 500 and 600 degrees c for 3 min , and the mutagenic activities of the pyrolysates were assayed on salmonella typhimurium ta98 and ta100 with or without metabolic activation by s9 mix .
C0002508
amines
C0032433
polyamines