4229-44-1 52716-10-6 593-77-1 AI3-52591 EINECS 224-181-2 Hydroxylamine, N-methyl-, hydrochloride (8CI) Methanamine, N-hydroxy-, hydrochloride Methylhydroxylamine hydrochloride Methylhydroxylammonium chloride N-Methylhydroxylamine hydrochloride N-Methylhydroxylammonium chloride NSC 48213