Abstract
The market preparation of candiolin contains a substance which decolourizes methylenblue at pH 7.4 when exposed to light, and resembles in many respects the reducton solution of Euler, produced by treating monosaccharide with dilute alkali.
The author is glad to acknowledge the kindness of Dr. K. Kodama for his suggestions and of Dr. Y. Shoji for his encouragement throughout this research.
