The most common factual error about semaglutide on the internet

On the subject in the title: The most common factual error about semaglutide on the internet Working notes rather than a conclusion.

Putting the numbers in the first post, because a question about a compound without them turns into a question about somebody's impression of it.

semaglutide, monoisotopic mass near 4113.6 Da, 5 weeks of my own notes, and 7 lots from 2 suppliers with a purity figure on each. That is the whole basis of what follows.

What I want checked is the reasoning I have built on top of it, not the figures themselves.

Helpful, and short, which on this subject is harder than long.

The C-cell question: semaglutide triggered medullary thyroid carcinoma in rodent toxicology studies. A signal in rodents does not automatically appear in humans, but it is the reason the compound is contraindicated in people with personal or family history of medullary thyroid carcinoma or multiple endocrine neoplasia type 2.