1.11.2.4 3,5,3',5'-tetramethylbenzidine 3,5,3',5'-tetramethylbenzidine as an additional substrate intercepts the hydroxylation of myristic acid 41102 1.11.2.4 cyanide - 118 1.11.2.4 H2O2 although a high concentration of hydrogen peroxide of 0.2 mM is necessary for high activities of the enzyme, it leads to a fast enzyme inactivation within 2-4 min 22 1.11.2.4 additional information the fatty acid alpha-hydroxylase activity of P450SPbeta is not affected when 80% of CO (by volume) is used as the gas phase in the reaction 2 1.11.2.4 myristic acid myristic acid hydroxylation is inhibited by 3,5,3',5'-tetramethylbenzidine oxidation in a 3,5,3',5'-tetramethylbenzidine concentration-dependent manner 876