traits: light brown or pale yellow powder, odorless tasteless.
solution: do not dissolve in water, chloroform, ethanol and ether.
purposes: antidiarrheal medicine, the role of convergence antidiarrheal. For acute gastroenteritis, non-bacterial diarrhea in children and dyspepsia.
preparation or sources: from the egg white with dilute solution of tannic acid derived.
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