2.1.4.2	cystamine	-	1497	
2.1.4.2	cystine	-	1967	
2.1.4.2	formamidine disulfidedihydrochloride	-	50718	
2.1.4.2	ornithine	product inhibition, most potent competitive inhibitor	576	
2.1.4.2	p-chloromercuribenzoate	-	43