the radioactive products obtained from enzymatic hydrolysates of polylysine that had been reacted with 1,1'ethylene-bis ( 1-nitrosourea ) ( ebnu ) [ carbonyl-14c ] and ebnu [ ethylene-14c ] coincided with the authentic samples of ca-lys , inc-lys , and hec-lys on thin-layer chromatography .
C0032518
polylysine
C0024337
lys