1.14.11.4	2-oxoglutarate	competitive substrate inhibition	34	
1.14.11.4	Adrenochrome	slight	15613	
1.14.11.4	Ca2+	-	15	
1.14.11.4	catechol	-	156	
1.14.11.4	Cd2+	-	52	
1.14.11.4	CO2	-	28	
1.14.11.4	Cu2+	-	19	
1.14.11.4	dehydroascorbate	-	434	
1.14.11.4	dipyridyl	a non-specific hydroxylase inhibitor; a non-specific hydroxylase inhibitor; a non-specific hydroxylase inhibitor	12878	
1.14.11.4	DL-Serine 2-[(2,3,4-trihydroxyphenyl)methyl]hydrazide	most potent	93286