Process for producing dextran reduced in boron content
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United States of America Patent
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Oct 14, 2003
Grant Date -
Jan 23, 2003
app pub date -
Apr 7, 2000
filing date -
Oct 9, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to dextran whose boron content is reduced to a value less than 0.30 .mu.g/g (dry basis) calculated on the basis of boron atom, a process for producing the same, and dextran with which a container is filled in a solution state. Dextran of the present invention is obtained by treating a boron-containing dextran with a lower alcohol, and said dextran has such a characteristic that deposition is inhibited or the deposition rate is drastically reduced when using it in the form of a solution. Therefore, an isotonic sodium chloride solution of said dextran is suitably used as substitute plasma or external perfusate in an operation.
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