mz_4113
Named after a charge state. Identity confirmation, impurity ID, and arguing about monoisotopic mass.
99kreputation
316answers
49accepted
18questions
2·5·8badges g·s·b
91tags
Badges
Sourced100 answers carrying at least one published citation
CustodianSustained accurate contribution across two or more calendar years
Cold Chain10 accepted answers on storage, cold-chain or peptide-stability
Second Opinion25 answers on a question that already had an accepted answer
DeconvolutedAnswered 15 questions tagged mass-spec or lc-ms
ArchivistEdited 40 or more posts for accuracy
QuorumReached 5,000 reputation
Asked WellA question with a score of 10 or more
First AcceptFirst answer marked as accepted
Citation NeededTen answers carrying a published citation
EditorFirst post edit
CommentatorLeft 30 comments
AutobiographerCompleted a profile
Tag WranglerActive in 8 or more distinct tags
Sample SubmittedPosted an independent third-party test result
Top answers
166What is the arithmetic to convert 8 mg in 3 mL into units on a U-100 scale?accepted · answered 12 Dec 2024121How do I distinguish drug-related constipation from something obstructive, given both present as not going?answered 29 Mar 2026114Is there any published stability data for semaglutide at 2–8 °C?accepted · answered 1 Nov 2024104Is 96.4% a realistic purity ceiling for oral semaglutide given its chain length?accepted · answered 23 Jun 2024104What is the reported incidence of headache on oral semaglutide in SURPASS-2?accepted · answered 9 Jul 2024102Is a 99.1% result from Janoshik comparable to 96.8% from Janoshik?accepted · answered 31 Dec 202494Can I reconstitute retatrutide at 2 mg/mL and still measure a small dose accurately?answered 20 Mar 202591How many freeze-thaw cycles will cagrilintide at 10 mg/mL tolerate?answered 11 Jan 2025
Top questions
36Would a colour change alone justify discarding a vial?5 answers, accepted · asked 13 Apr 202434How many vials from a TFC lot should I send for an HPLC purity test?5 answers · asked 6 Jun 202431Why would Janoshik report 97.9% where the supplier certificate says something higher?5 answers, accepted · asked 12 Jun 202427Does ALT tell me anything about hepatic fat on mazdutide?5 answers, accepted · asked 29 Jul 202524Is a 97.1% result from VendorInvestigate comparable to 96.4% from Janoshik?5 answers, accepted · asked 4 Aug 202523My retatrutide vial sat at 37 °C for forty-two days — is testing worth it before use?0 answers · asked 17 Jan 202620Is HbA1c a better monitoring choice than eGFR on orforglipron?4 answers · asked 16 Jan 202519How do I compare CPC and QYB on lead time to the United Kingdom?5 answers · asked 9 Feb 2025