2-Methylpseudourea hydrochloride 2440-60-0 5329-33-9 Carbamimidic acid, methyl ester, monohydrochloride (9CI) NSC 1896 O-Methylisourea hydrochloride O-Methyluronium chloride Pseudourea, 2-methyl-, monohydrochloride (8CI)