5-hydroxy-4-methoxy-2-nitrobenzaldehyde 58749-47-6 InChI=1/C8H7NO5/c1-14-8-3-6(9(12)13)5(4-10)2-7(8)11/h2-4,11H,1H benzaldehyde, 5-hydroxy-4-methoxy-2-nitro-