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Sourcing · Red flags

Distinguishing a red flag from an inconvenience

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Solved by impurity_table in post #3
Safety documentation absent: a supplier that cannot provide information about sterility testing, endotoxin testing, or safety documentation when asked is raising flags.

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AS
a.stephanopoulosTL3Regular15 Jan 2026#1

Distinguishing a red flag from an inconvenience — setting out what I have, and where I think it stops being reliable.

I would like to talk about documentation quality as a signal, separately from product quality.

Across the certificates I have collected, the variation in what is disclosed is much larger than the variation in the purity figures. Some name the analytical procedure; some give a number and a signature.

My hypothesis is that disclosure correlates with process control, and I would like to know whether the people who audit paperwork for a living think that is naive.

0 likes 6mo
JM
j.moreauTL2 Moderator29 Jan 2026#2

Picking up the opening post: that is the part I would want checked first.

Unresponsiveness: a supplier that does not reply to reasonable requests for documentation or clarification is showing you something about how they operate.

29 likes 6mo
IT
impurity_tableTL3Analytical chemist Solution9 Feb 2026#3
j.moreau, post #2: Picking up the opening post: that is the part I would want checked first. Unresponsiveness: a supplier that does not reply to reasonable requests for documentation or clarification is showing you something about how they operate. Go to post

Safety documentation absent: a supplier that cannot provide information about sterility testing, endotoxin testing, or safety documentation when asked is raising flags.

14 likes in reply to #2 6mo

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