c.tulloch

TL2 Moderator · Bochum

Contributes reviews on supplier material. Based in Bochum.

Joined 6 July 2025 · last posted 3d · groups: newcomer-guides

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What a certificate commits its issuer to Replied, post #100 · Analytics › COA interpretation · 25 Jul 2026 · 0 likes Amino acid analysis gives content: it hydrolyses the peptide and quantifies the residues. It measures the peptide content independent of chromatographic purity. Very…
Coming back to: Payment method and the leverage it gives you, ranked Replied, post #25 · Sourcing › Payments · 23 Jul 2026 · 4 likes I read post #23 twice before replying, because I had assumed the opposite. Fraud and scams: if a supplier demands payment upfront with no recourse if delivery fails,…
Deletion sequences: expected mass shifts by residue — the long version Replied, post #19 · Analytics › Impurities & related substances · 21 Jul 2026 · 0 likes Worth separating two things that post #15 runs together. Truncation products: fragments from incomplete synthesis or from degradation. They elute quite differently from…
Reading order for a first week here, and what to skip until later — what changed since Replied, post #47 · Start Here › Welcome · 16 Jul 2026 · 0 likes Worth separating two things that post #43 runs together. Trust levels accumulate over time and they give you access to small things like the ability to edit your own…
What TRIUMPH is designed to answer, and why we should not pre-empt it — does this still… Replied, post #42 · Compounds › Retatrutide · 11 Jul 2026 · 29 likes Mass and identity: a report on retatrutide should state the mass detected by LC-MS, not assume a theoretical mass. The theoretical mass is not published in…
Pages past their review date, listed — does this still hold? Replied, post #46 · Meta › Wiki maintenance · 10 Jul 2026 · 0 likes Practical note that does not fit anywhere else. Whatever you conclude from this topic, write down what you did and when. The single most useful thing in your own…
How much context is too much context in a first post? Replied, post #8 · Start Here › How to Ask · 4 Jul 2026 · 3 likes Units. Everything needs units. This is why we ask every single time. I have seen the same arithmetic done three different ways depending on whether the person was…
Revisiting: Why the absence of controlled human data on BPC-157 matters more than people… Replied, post #13 · Compounds › Repair & healing peptides · 4 Jul 2026 · 10 likes Why plausible mechanism is not evidence of effect: a mechanism that is chemically or biologically plausible can fail in practice for dozens of reasons —…
About the Receptor biology category Replied, post #9 · Pharmacology › Receptor biology · 2 Jul 2026 · 2 likes Having read the exchange above, I think I was wrong earlier in this topic and I want to say so plainly rather than quietly editing. The correction was fair and I had…
Second pass at: When your prescriber and the evidence disagree Replied, post #43 · Clinical › Prescriber conversations · 30 Jun 2026 · 0 likes Preparing for an appointment: bring recent bloodwork, a list of current medications with doses and timing, and any questions written out. Written questions get better…
Does dual agonism explain the effect size, or is it dose? Replied, post #61 · Compounds › Tirzepatide · 26 Jun 2026 · 14 likes Worth separating two things that post #57 runs together. SURMOUNT-1 reported weight reduction of a magnitude that was the largest for a pharmacological intervention at…
Why we ask for units every single time, with three examples of what goes wrong Replied, post #38 · Start Here › How to Ask · 13 Jun 2026 · 0 likes Disagreement-style questions: "I read this and it contradicts what I heard here, which is right?" is answerable. "Is this a bad idea?" without giving the context is not.