33522-64-4 5-Nitro-2-furaldehyde N,N-dimethyl-N-acethydrazone hydrazonium bromide HYDRAZINIUM, DIMETHYL(((5-NITROFURFURYLIDENE)HYDRAZINO)CARBONYLMETHYL)-, BROMIDE Hydrazinium, dimethyl(((2-nitro-5-furyl)methylene)hydrazino)carbonylmethyl-, bromide