Newest first. 5.2k questions across 107 tags.
Details up front: racemisation · 2–8 °C. I suspect the usual explanation for this is wrong, or at least incomplete. I am aware this may have a boring answer. I would…
Numbers first: 98.8% · Janoshik · 96.4%. Before I write this off, I want to check whether it is a known failure mode. I have the lot number, the certificate and the…
Concretely: list of related substances · MKM. I want to decide this in advance so that I am not deciding it under pressure later. Assume I will follow the plan I…
The case in front of me: 95.2% · a C4 column · retatrutide. The figures are clear enough; the question is what they mean and what they do not. I can supply the…
Conditions: 98.4% · oral semaglutide · BCH. I want to decide this in advance so that I am not deciding it under pressure later. Assume I will follow the plan I write…
Conditions: TFC · Changsha · the United Kingdom. I want to decide this in advance so that I am not deciding it under pressure later. Assume I will follow the plan I…
The method section is present, which is unusual enough that I want to make use of it. These are treated as interchangeable and I do not think they are. If both are…
The vial was lyophilised at the time, which I understand may matter a great deal. I want to decide this in advance so that I am not deciding it under pressure later.…
The case in front of me: CPC · an HPLC purity test. I want the working, not the result — I need to be able to redo it with different numbers. I care about the…
The particulars: deamidation · semaglutide · minus 20 °C. I understand the observation; what I do not understand is the mechanism behind it. I have read the two…
The specifics, since they change the answer: SURMOUNT-4 · semaglutide. I have the document in front of me and I can read the numbers. What I cannot do is interpret…
The specifics, since they change the answer: Qingdao · New Zealand. I have the document in front of me and I can read the numbers. What I cannot do is interpret them.…
The specifics, since they change the answer: deamidation · ecnoglutide · 30 °C. I understand the observation; what I do not understand is the mechanism behind it. I…
Setup, so nobody has to ask: orforglipron · two weeks · 4 °C. I am trying to build something sustainable rather than something thorough that I will abandon. I have…
Stated plainly: a mini-fridge · mazdutide. I am trying to build something sustainable rather than something thorough that I will abandon. I have already decided the…
Setup, so nobody has to ask: 60 mg · 0.5 mL · bacteriostatic water · oral semaglutide. I am trying to build something sustainable rather than something thorough that…
Setup, so nobody has to ask: QSC · mazdutide. I have read the primary source rather than the summary, which has left me with more questions. I understand the…
I have been offered "a full panel" and I would rather understand what I am asking for than collect numbers I cannot interpret. My concern is specifically that active…
Orforglipron is described as a non-peptide oral GLP-1 receptor agonist, which I take to mean it is a conventional small molecule rather than a peptide with a delivery…
What I have: 97.1% · a C8 column · liraglutide. I can parse the result. I am less sure what it licenses me to conclude. I have deliberately not looked at anyone…
Numbers first: room temperature · dulaglutide. I am asking for verification rather than opinion, ideally with something I can read myself. It is possible the evidence…
Numbers first: Medutest · dulaglutide. I can find plenty of assertions about this and almost no reasoning, which is usually a sign that nobody has checked. Assume no…
What I have: SOUL · orforglipron. I can parse the result. I am less sure what it licenses me to conclude. I have deliberately not looked at anyone else’s…
What I have: 97.9% · purity figure. I can parse the result. I am less sure what it licenses me to conclude. I have deliberately not looked at anyone else’s…