Hypoglycemic Agents. I.1 Chemical Properties of β-Phenethylbiguanide.2 A New Hypoglycemic Agent3 Shapiro, Seymour L. ; Parrino, Vincent A. ; Freedman, Louis Abstract Publication: Journal of the American Chemical Society Pub Date: May 1959 DOI: 10.1021/ja01518a052 Bibcode: 1959JAChS..81.2220S