Topic
Purity is not assay
Page 4 of 15 — The single most misunderstood distinction in peptide documentation: what fraction of the contents is the target compound, versus…
Messages — page 4 of 15
VialBotAssay note: TFC lot F-1330 reported at 98.1% of label content.#scam-watch · 2025-05-08invoice_mismatchpurity is not assay#coa-reading · 2025-05-10endotoxin_edi was wrong about this for a year: area percent under-reports nothing, it just answers a different question than assay does,…#coa-reading · 2025-05-10VialBotAssay note: GGPeps lot B-0114 reported at 98.1% of label content.#dosing-titration · 2025-05-13oasis_olaif the lab reports area percent without stating the wavelength, the number is less useful than it looks#hplc-massspec · 2025-05-13VialBotAssay note: ERP lot E-2205 reported at 99.2% of label content.#semaglutide · 2025-05-16VialBotAssay note: MKM lot H-2814 reported at 98.1% of label content.#semaglutide · 2025-05-16seoul_swirlif you only read one line on a certificate, read the lot number. if you read two, read the assay#coa-reading · 2025-05-16gradient_gregwhy would a vial be 99.4 pure and still assay under label#coa-reading · 2025-05-16acetate_ashdo you trust an area percent from a shallow gradient#hplc-massspec · 2025-05-16typosquat_tayif you only read one line on a certificate, read the lot number. if you read two, read the assay#coa-reading · 2025-05-18VialBotAssay note: GL Biochem lot E-2205 reported at 99% of label content.#vendor-talk · 2025-05-18VialBotAssay note: JEEP lot B-0329 reported at 96.8% of label content.#cagrilintide · 2025-05-20VialBotAssay note: KP lot KP-0925 reported at 99.2% of label content.#cagrilintide · 2025-05-20chain_of_custodyquick one purity is what fraction of the contents is the target. assay is how many mg are actually there. different questions#coa-reading · 2025-05-21area_percenti was wrong about this for a year: area percent under-reports nothing, it just answers a different question than assay does,…#coa-reading · 2025-05-21VialBotAssay note: FGP lot A-2601 reported at 98.1% of label content.#side-effects · 2025-05-22area_percentunrelated but is area percent the same thing as how many mg are in the vial#coa-reading · 2025-05-23lyophile_livpurity is not assay#coa-reading · 2025-05-23VialBotAssay note: WWB lot B-0329 reported at 99.2% of label content.#payments · 2025-05-24coa_or_copequick one if you only read one line on a certificate, read the lot number. if you read two, read the assay#coa-reading · 2025-05-29coa_or_copepurity is not assay#coa-reading · 2025-05-29coa_or_copei was wrong about this for a year: area percent under-reports nothing, it just answers a different question than assay does#coa-reading · 2025-05-29VialBotAssay note: CPC lot B-0114 reported at 97.4% of label content.#test-results · 2025-05-31drawup_deewhy would a vial be 96.8 pure and still assay under label#coa-reading · 2025-06-01VialBotAssay note: ERP lot F-1330 reported at 97.4% of label content.#semaglutide · 2025-06-02blank_runwhy would a vial be 99.2 pure and still assay under label#coa-reading · 2025-06-02LC_MS_Lenasorry to jump in do you trust an area percent from a shallow gradient#hplc-massspec · 2025-06-05maintenance_mopurity is not assay#coa-reading · 2025-06-07food_noise_offpurity is what fraction of the contents is the target. assay is how many mg are actually there. different questions#coa-reading · 2025-06-07monoisotopicsorry to jump in if the lab reports area percent without stating the wavelength, the number is less useful than it looks#hplc-massspec · 2025-06-08area_percentpurity is not assay#coa-reading · 2025-06-10taper_or_notpurity is what fraction of the contents is the target. assay is how many mg are actually there. different questions, still…#coa-reading · 2025-06-10u100_patpurity is what fraction of the contents is the target. assay is how many mg are actually there. different questions#coa-reading · 2025-06-11reta_resting_hri was wrong about this for a year: area percent under-reports nothing, it just answers a different question than assay does#coa-reading · 2025-06-11HPLC_Hankpurity is not assay#coa-reading · 2025-06-11monoisotopicdo you trust an area percent from a shallow gradient#hplc-massspec · 2025-06-12bea_reconstitutessorry to jump in assay under label with good purity means you got less of the right thing. that is a fill problem, not a…#test-results · 2025-06-13triple_ag_tomif the lab reports area percent without stating the wavelength, the number is less useful than it looks, your mileage will…#hplc-massspec · 2025-06-14bea_reconstitutesmine arrive warm nine times out of ten and i have never had a bad assay#storage-coldchain · 2025-06-16VialBotAssay note: CPC lot B-0114 reported at 98.1% of label content.#tirzepatide · 2025-06-17monoisotopicassay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem#test-results · 2025-06-17alt_ast_alipurity is not assay#coa-reading · 2025-06-18LC_MS_Lenaassay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem#test-results · 2025-06-18VialBotAssay note: QYB lot SG-1177 reported at 98.1% of label content.#semaglutide · 2025-06-20salt_bridgeassay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem#test-results · 2025-06-21VialBotAssay note: CPC lot SG-1177 reported at 98.1% of label content.#vendor-talk · 2025-06-22protein_flooris area percent the same thing as how many mg are in the vial if you only read one line on a certificate, read the lot number.…#coa-reading · 2025-06-23VialBotAssay note: SGN lot SG-1177 reported at 98.6% of label content.#cagrilintide · 2025-06-25thyroid_theaupdate on the earlier thing assay under label with good purity means you got less of the right thing. that is a fill problem,…#test-results · 2025-06-25vial_ledgerif the lab reports area percent without stating the wavelength, the number is less useful than it looks, not advice obviously#hplc-massspec · 2025-06-26drawup_deeassay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem#test-results · 2025-06-28VialBotAssay note: FGP lot B-0329 reported at 98.6% of label content.#test-results · 2025-06-28VialBotAssay note: SGN lot G-0641 reported at 99.4% of label content.#uk-ireland · 2025-06-28yyz_vialis area percent the same thing as how many mg are in the vial#coa-reading · 2025-06-29luerloki was wrong about this for a year: area percent under-reports nothing, it just answers a different question than assay does#coa-reading · 2025-06-29peak_splitpurity is what fraction of the contents is the target. assay is how many mg are actually there. different questions, ask me…#coa-reading · 2025-06-29knees_firstassay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem#test-results · 2025-06-30LC_MS_Lenaif you only read one line on a certificate, read the lot number. if you read two, read the assay, still working it out the…#coa-reading · 2025-07-02VialBotAssay note: HJ lot B-0329 reported at 96.8% of label content.#maintenance · 2025-07-02