bis(5-tetrazolyl)amine;bis(tetrazol-5-yl)amine; bis(1(2)h-tetrazol-5-yl)amine; n-(1h-tetrazol-5-yl)-1h-tetrazol-5-amine; n-1h-tetrazol-5-yl-1h-tetrazolyl-5-amine
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