1,1'-Azobis(1,2,3,4-tetrazole) is a highly explosive and unstable chemical compound discovered by Thomas M. Klapötke and Davin G. Piercey at LMU Munich which contains a long continuous chain of nitrogen atoms, with an unbroken chain of ten nitrogen atoms contained within two 1,2,3,4-tetrazole rings and an azo bridge.
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