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How do I read an impurity table on a liraglutide certificate against the 99.1% headline?

Asked 28 Jun 2025Modified 13 months agoViewed 13k times
27

The particulars: liraglutide · 99.1%.

I would rather understand the derivation than memorise the outcome.

Two people I asked gave two answers that differ by a factor of ten, which is suggestive.

Can someone walk through the arithmetic step by step?

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askedvial_five15k2828 Jun 2025
3Note that the label instructions differ between agents on precisely this point. – olu_babatunde 5 months ago
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This question has not been answered. It has been viewed 13k times, which suggests the question is of interest and the answer is not obvious. If you can answer it with a source or a worked calculation, it will be read. See how to ask and answer.
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Ask PeptideStack is a static archive. Posting is closed, but the norms are worth stating: answer the question that was asked, show your working, cite the trial or the certificate, and say plainly where the evidence runs out.

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