pierce_count
Reading the primary literature slowly and out of order.
15kreputation
40answers
3accepted
23questions
0·2·8badges g·s·b
57tags
85Why does freeze-concentration shift pH during freezing?answered 18 May 2024 · freeze-thaw, peptide-stability, lyophilisation66Why does deamidation accelerate at room temperature rather than proceeding linearly?answered 14 Dec 2024 · peptide-stability, storage, hplc54How many vial-days does a 2 mg vial give at 1 mg/mL on a weekly schedule?answered 20 Oct 2025 · dosing-math, cost-analysis, diluent-volume48How do I read a sequence coverage map, and why is 100% coverage sometimes worthless?accepted · answered 30 Nov 2025 · peptide-mapping, lc-ms, coa43Would you accept 98.4% on dulaglutide from QYB without a content assay?answered 3 Jul 2025 · purity, content-assay, vendor-vetting41What did the placebo arm of SUSTAIN-6 report for nausea?answered 30 Sept 2025 · clinical-trials, gi-side-effects, nausea36Is an SSA order from Wuhan likely to hold cold chain to the United States?answered 17 Dec 2024 · cold-chain, international-shipping, vendor-comparison33Is a 18G drawing needle the right choice for drawing orforglipron at 20 mg/mL?answered 5 Sept 2024 · needle-gauge, injection-technique, dead-space30Would you accept 98.2% on dulaglutide from GGPeps without a content assay?answered 13 Jul 2024 · purity, content-assay, vendor-vetting28How many freeze-thaw cycles will tirzepatide at 1 mg/mL tolerate?answered 6 Jul 2024 · freeze-thaw, peptide-stability, storage27What does 97.9% purity on a C18 column actually tell me about an ecnoglutide vial?answered 13 Jan 2026 · hplc, purity, coa25What fraction of loss on ecnoglutide is lean mass according to SOUL?answered 14 Jun 2025 · lean-mass, muscle-loss, dexa25What is the real-world lead time from Wuxi to South Africa in winter?answered 23 Jan 2026 · international-shipping, cold-chain, customs24Is a 97.6% result from PeptideMeter comparable to 95.2% from Janoshik?answered 24 Jul 2026 · purity, batch-testing, reference-standard24What is the reported incidence of reflux on ecnoglutide in SUSTAIN-6?answered 24 Dec 2024 · gi-side-effects, clinical-trials, nausea23What did the placebo arm of STEP 1 report for constipation?answered 28 Apr 2024 · clinical-trials, gi-side-effects, nausea23What does 99.1% purity on a C4 column actually tell me about an orforglipron vial?accepted · answered 25 Feb 2026 · hplc, purity, coa22Does fibrillation dominate for semaglutide held at 4 °C?answered 2 Jun 2024 · peptide-stability, storage, hplc21What should be in place before a first survodutide vial arrives from Qingdao?answered 28 Dec 2024 · harm-reduction, research-use-only, sterility20Can I reconstitute liraglutide at 6.67 mg/mL and still measure a small dose accurately?answered 12 May 2026 · diluent-volume, insulin-syringe, dosing-math19How do I reconcile 98.4% from Janoshik with 95.2% from the supplier?answered 10 Apr 2025 · purity, batch-testing, coa18Is GIP agonism or antagonism the metabolically useful direction?answered 18 Feb 2026 · gip-receptor, tirzepatide, glp1-mechanism17Is 40 mg weekly a defensible maintenance dose for tirzepatide?answered 30 Dec 2024 · maintenance-dose, clinical-trials, dosing-math17What does a collapsed lyophilisation cake tell me about the vial?answered 22 Oct 2025 · lyophilisation, vial-inspection, water-content16Is a sterility test worth paying for on top of a purity figure for orforglipron?answered 11 Apr 2026 · content-assay, batch-testing, cost-analysis16Is STEP 2 a fair comparison of survodutide against its comparator arm?answered 26 Apr 2026 · clinical-trials, semaglutide, tirzepatide15How many freeze-thaw cycles will liraglutide at 6.67 mg/mL tolerate?answered 26 Nov 2024 · freeze-thaw, peptide-stability, storage15What fraction of loss on liraglutide is lean mass according to REDEFINE-1?answered 1 May 2025 · lean-mass, muscle-loss, dexa13Does splitting a 60 mg weekly dose of mazdutide across two administrations change anything?answered 26 Jan 2025 · split-dosing, dosing-math, glp1-mechanism13What is the arithmetic to convert 20 mg in 2 mL into units on a U-100 scale?answered 1 Nov 2024 · dosing-math, insulin-syringe, reconstitution12Is a method section from Homopeptide sufficient basis to skip independent testing?answered 14 Apr 2026 · coa, batch-testing, harm-reduction11Is lipase a better monitoring choice than potassium on survodutide?answered 23 Jun 2025 · bloodwork, kidney-function, lipids11What fraction of loss on ecnoglutide is lean mass according to PIONEER-1?answered 5 Apr 2026 · lean-mass, muscle-loss, dexa11Why do two papers on TRIUMPH-1 report different headline figures?answered 23 Apr 2026 · clinical-trials, dosing-math, semaglutide10What is the arithmetic to convert 2 mg in 1 mL into units on a U-100 scale?accepted · answered 13 Apr 2025 · dosing-math, insulin-syringe, reconstitution8If I reconstitute a 8 mg vial with 5 mL of sterile water for injection, what concentration do I end up with?answered 1 Jul 2025 · reconstitution, diluent-volume, dosing-math7Does deamidation of semaglutide at minus 20 °C show up as a loss of content or of purity?answered 29 Jan 2026 · peptide-stability, content-assay, purity4Is 99.4% a realistic purity ceiling for orforglipron given its chain length?answered 17 Jun 2025 · purity, hplc, peptide-mapping2What would you ask Flourishglobal Peptide Biotech before a first order that they cannot fake?answered 12 Feb 2025 · vendor-vetting, coa, batch-testing1Why would Medutest report 98.4% where the supplier certificate says something higher?answered 24 May 2025 · purity, hplc, batch-testing