The knowledge that% substituted tetrazoles and Tetrazole analogs of plant growth regulators such as 3-indolylacetic acid and 2, 4-dichlorophenoxyacetic acid retained some acti~ ity.~,~ Two out of three tetrazole analogs of glutamic acid acted as substrates for beef liver L-glutamic dehydrogenase, 6 whereas 5-(Paminophenyl) tetrazole, an analog of p- aminobenzoic acid, was found to be inactive against Staphylococcus aureus their ...