1-o-Tolylbiguanide monohydrochloride 4751-99-9 93-69-6 AI3-17787 BIGUANIDE, 1-o-TOLYL-, MONOHYDROCHLORIDE Imidodicarbonimidic diamide, N-(2-methylphenyl)-, monohydrochloride (9CI) NSC 3275