Wenderoth, Lind & Ponack
Method for preserving blood using ascorbic acid tocopheryl phosphate esters
 A method for the preservation of blood and a blood preserving composition comprising a phosphoric acid diester of the following formula: ##STR1## (wherein R.sub.1 and R.sub.2 are the same or different and each represents a hydrogen atom or a methyl group) or a pharmacologically acceptable salt thereof. The compounds used for the object of the invention are capable of maintaining the biological function of blood for a long period of time without harming its components. Therefore, the composition of the invention can be advantageously used for preserving blood and its components such as erythrocytes, leukocytes and platelets, and is useful for preventing hepatic disorder which can accompany blood transfusion. 
Senju Pharmaceutical Co., Ltd.
A A
A01N A01N
inventional inventional
Kazumi Kenichi
Ogata Yoshida