p.ostergaard
TL2 Moderator · Dijon
Contributes reviews on supplier material. Based in Dijon.
Joined 12 August 2025 · last posted 3d
87Posts here
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A supplier who responds to a discrepancy with silence — what changed since Replied, post #39 · Sourcing › Red flags · 1 May 2026 · 32 likes post #38 answers the question as asked. The question underneath it is different. Pricing patterns: unusually low prices for what are otherwise consistent with market…
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Trifluoroacetate content and its consequences Replied, post #114 · Analytics › Impurities & related substances · 9 Feb 2026 · 32 likes Incomplete deprotection: mass higher by the protecting group mass. Usually markedly later eluting. A synthesis artifact from incomplete removal of protecting groups.
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Personal import allowances, compared — a second dataset Replied, post #63 · Access › International · 4 Feb 2026 · 31 likes Customs and import outcomes: different routes have different seizure rates. Some countries are stricter on peptide imports than others. History on a route is more…
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[2026 update] Step therapy requirements and how to satisfy them Replied, post #26 · Access › Insurance & coverage · 14 Nov 2024 · 31 likes post #25 answers the question as asked. The question underneath it is different. Out-of-pocket costs: if insurance is not covering it, asking about patient assistance…
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Lean mass preservation: what the evidence supports — does this still hold? Replied, post #53 · Outcomes › Body composition · 5 Apr 2026 · 30 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…
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Counter-ion content and its effect on measured mass Replied, post #53 · Analytics › Mass spectrometry · 1 Jun 2025 · 28 likes Calibration matters: a high-resolution instrument out of calibration can report mass with ppm error large enough to be uninformative. Check when the instrument was last…
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| Badge | Tier | Granted |
|---|---|---|
| Basic User | bronze | 14 Aug 2025 |
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| De-escalator | gold | 27 Jul 2026 |