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Interested in the analytical side, out of my depth in the clinical side.
18kreputation
37answers
7accepted
23questions
0·2·8badges g·s·b
51tags
161How do I compute the +3 charge state m/z for a peptide of 4813.5 Da?accepted · answered 19 Jun 2024 · mass-spec, dosing-math, purity97What are the rodent C-cell findings behind the thyroid warning, and do they transfer to humans?answered 30 Sept 2024 · thyroid, clinical-trials, liraglutide90What is the reported incidence of headache on mazdutide in STEP 5?answered 27 Jun 2024 · gi-side-effects, clinical-trials, nausea82What does a batch certificate on an FGP report change about how I read it?accepted · answered 18 Jul 2025 · coa, batch-testing, vendor-vetting69How many freeze-thaw cycles will cagrilintide at 2.5 mg/mL tolerate?answered 12 Jul 2024 · freeze-thaw, peptide-stability, storage67What is the real-world lead time from Guangzhou to Spain in winter?answered 29 Aug 2025 · international-shipping, cold-chain, customs66Is 50 mg in 2.5 mL of phosphate-buffered diluent a sensible presentation for orforglipron?answered 18 Nov 2024 · diluent-volume, reconstitution, dosing-math56What happens to ecnoglutide after four weeks at 25 °C in solution?accepted · answered 12 May 2024 · peptide-stability, storage, shelf-life52How much protein in grams do I need at 124 kg on 1,100 kcal a day?answered 23 Feb 2026 · protein-intake, nutrition, lean-mass49Why does aggregation accelerate at 30 °C rather than proceeding linearly?answered 2 Jul 2026 · peptide-stability, storage, hplc43How many freeze-thaw cycles will mazdutide at 1 mg/mL tolerate?accepted · answered 23 Jan 2025 · freeze-thaw, peptide-stability, storage41What has VendorInvestigate published on MKM lots in the last year?accepted · answered 20 Sept 2025 · vendor-investigate, batch-testing, vendor-comparison40What is the reported incidence of vomiting on orforglipron in STEP 1?answered 17 Dec 2024 · gi-side-effects, clinical-trials, nausea36Is headache on tirzepatide dose-dependent or dose-rate dependent?accepted · answered 22 Jul 2026 · nausea, titration, gi-side-effects34What did the placebo arm of SURMOUNT-4 report for constipation?answered 30 May 2025 · clinical-trials, gi-side-effects, nausea30How do I reconcile 97.9% from VendorInvestigate with 96.8% from the supplier?answered 10 Feb 2025 · purity, batch-testing, coa30Is orforglipron at 5 mg/mL stable enough for sixteen weeks of multi-withdrawal use?answered 16 Oct 2024 · peptide-stability, bacteriostatic-water, shelf-life29How does QYB compare to Hubei Jianxiang Bioscience on documentation quality?answered 28 Jun 2026 · vendor-comparison, coa, vendor-vetting26What does a 97.6% purity with a date of analysis attached let me conclude?answered 26 Jun 2025 · purity, coa, hplc25Why did my ALT move after eight weeks on survodutide?answered 27 Feb 2026 · bloodwork, kidney-function, lipids24How does QSC compare to Xi’an Mokemei Biotechnology on documentation quality?answered 7 Jul 2025 · vendor-comparison, coa, vendor-vetting22What does ESSENCE report at the 4 mg dose level?answered 5 Jul 2026 · clinical-trials, dosing-math, titration21Why has a parcel to Singapore sat at a customs facility for three days?answered 15 Feb 2026 · customs, international-shipping, import-regulations17Is 4 mg in 5 mL of phosphate-buffered diluent a sensible presentation for orforglipron?answered 29 May 2026 · diluent-volume, reconstitution, dosing-math17What counter-ion should I expect on a QST liraglutide lot?answered 7 Apr 2026 · acetate-content, purity, content-assay17Why would PeptideMeter report 99.4% where the supplier certificate says something higher?answered 20 Jul 2026 · purity, hplc, batch-testing15Is 98.8% a realistic purity ceiling for a GLP-1 receptor agonist given its chain length?answered 16 Apr 2024 · purity, hplc, peptide-mapping15Is a laboratory refrigerator good enough for storing reconstituted tirzepatide?answered 7 Aug 2025 · storage, cold-chain, harm-reduction14How do I get 30 units out of a vial reconstituted to 20 mg/mL without guessing?answered 9 Jun 2025 · insulin-syringe, dosing-math, diluent-volume12How many freeze-thaw cycles will liraglutide at 2.5 mg/mL tolerate?answered 26 Mar 2026 · freeze-thaw, peptide-stability, storage6What does STEP 3 report at the 20 mg dose level?accepted · answered 29 Dec 2024 · clinical-trials, dosing-math, titration5How many freeze-thaw cycles will ecnoglutide at 20 mg/mL tolerate?answered 26 Jun 2026 · freeze-thaw, peptide-stability, storage2What does SURPASS-2 report at the 8 mg dose level?answered 18 May 2025 · clinical-trials, dosing-math, titration1Why does hydrolysis accelerate at minus 20 °C rather than proceeding linearly?answered 20 Nov 2024 · peptide-stability, storage, hplc-1How do I reconcile 97.6% from Medutest with 98.2% from the supplier?answered 19 Jun 2025 · purity, batch-testing, coa-2What happens after a seizure notice in Spain?answered 23 Jun 2026 · customs, import-regulations, research-use-only-3How many units on a 0.3 mL insulin syringe is a 10 mg dose at 3.33 mg/mL?answered 1 Sept 2024 · dosing-math, insulin-syringe, reconstitution