141283-42-3

8-Nitro-2-tetrazol-5-yl-4-oxo-4H-1-benzopyran 8-nitro-2-(1H-tetrazol-5-yl)-4H-chromen-4-one 8-Nitro-2-(1H-tetrazol-5-yl)-4H-1-benzopyran-4-one 4H-1-Benzopyran-4-one, 8-nitro-2-(2H-tetrazol-5-yl)- 4H-1-Benzopyran-4-one, 8-nitro-2-(1H-tetrazol-5-yl)-