ENNG, 1-ETHYL-3-NITRO-1-NITROSOGUANIDINE, 1-ethyl-3-nitro-1-nitroso-guanidin, N-Aethyl-N'-nitro-N-nitroso-guanidin, N-ethyl-N'-nitro-N-nitroso-guanidine, 1-ETHYL-1-NITROSO-3-NITROGUANIDINE, N-Nitroso-N'-nitro-N-ethylguanidine, N-Nitroso-N-aethyl-N'-nitroguanidin, 1-Ethyl-2-nitro-1-nitrosoguanidine