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From: zhaojk (zhaojk$##$telekbird.com.cn)
Date: Tue May 30 2000 - 04:02:32 EDT

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Dear all,

Can anybody give me some advice on how to separate the amino alcohol compound
by chromatography method? I use dimethylmethane and CH3OH as the developing
solvent but I find it is difficult to wash them off from the SilGel collum? I
change to Al2O3, but it does not work.

As the polarity of the compound is too large(2 NH2 group and 2 OH group), I
failed several times in the work. I am looking forwad to your reply.

Sincerely yours

Sunshine

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