1H-Tetrazole-1-butanamide, N,N-diethyl-5-methyl- 80086-34-6 N,N-Diethyl-4-(5-methyl-1,2,3,4-tetrazol-1-yl)butyramide N,N-Diethyl-5-methyl-1H-tetrazole-1-butanamide