AMMRL: Impurity in library compounds

From: Zhang, Weixing <Weixing.Zhang_at_STJUDE.ORG>
Date: Wed, 19 Jun 2019 20:38:18 +0000

Hello All,

When we are analyzing our library compounds, we found an unknown impurity in many compounds.
The impurity has a splitting of 52 Hz and 9.4 Hz as shown in the (500 MHz NMR spectrum).
It aggregates in solution because Water-LOGSY shows positive signal.

Your suggestion to identify this impurity is appreciated!

Thanks,
Weixing

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Received on Wed Jun 19 2019 - 10:38:58 MST