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Peptide Atlas · Excipient

Tris HCl

Tris is a common biological buffer; stored at 70 C in a peptide formulation it degraded to liberate formaldehyde, which reacted with the peptide's tyrosine residue.

What the evidence says

six tiers, never blended

preclinical — animal, cell or mechanistic work — not yet about people

every claim resolves to its source

All 1 citation resolves to their original source. · 0 posts naming it, 0 members counted once each.

Evidence, kept apart

The Atlas never mixes evidence types into one blob. Each claim below carries the tier it actually sits in; an unresolved citation is shown and does not move the page.

Evidence map for Tris HCl. Tier reflects study design, not enthusiasm.
ClaimTierSource
Formaldehyde production by Tris buffer in peptide formulationspreclinicalpmid 11536224

Unanswered questions

No open questions on file. Either everything about this molecule is known, or nobody has admitted what is not.

Negative findings

failure is information

Nobody has filed a failure yet. Failures are information; this list is waiting for an honest one.