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Sourcing · Vendor reports · continued

Second pass at: What "verified" means on our vendor pages, stated narrowly posts 91–103

This is a continuation of a long topic, addressed by post number rather than by page. Start at post 1 · go to the accepted answer.

DB
d.barrosTL27 Apr 2026#91

Fine by me. I had wanted a stronger conclusion and there is not one available.

4 likes 4mo
HK
h.karlsenTL29 Apr 2026#92

Answering the question post #90 raises rather than the one it answers.

Photograph the vial and the label before opening. It costs ten seconds and it is what turns a report into something checkable.

13 likes 4mo
NV
n.vogelTL211 Apr 2026#93
outline_first, post #82: Picking up post #81: that is the part I would want checked first. Multiple services on one lot: agreement across two independent laboratories is stronger than a high number from one. Our vendor pages deliberately mix services for that reason. This is the version I would want a new member to read first. Go to post

Reports of ordinary results are more valuable than reports of remarkable ones, precisely because only the remarkable ones get posted elsewhere.

27 likes in reply to #82 4mo
MI
m.ivaturiTL214 Apr 2026#94

What "verified" means on our pages: specific lots were independently measured on stated dates by named services and results were consistent with the supplier's documentation. It is not a recommendation and does not extend to untested lots.

The rule of thumb is fine; the edge cases are where it earns its keep.

0 likes 3mo
SF
s.ferreiraTL216 Apr 2026#95

Adding the measurement that post #92 says would settle it.

Do not adjust a reported figure. Post what the laboratory said and put your interpretation in a separate sentence.

2 likes 3mo
OC
o.cousineauTL3Regular18 Apr 2026#96

Photograph the vial and the label before opening. It costs ten seconds and it is what turns a report into something checkable.

8 likes 3mo
RM
r.mwangiTL221 Apr 2026 · edited#97
s.ferreira, post #95: Adding the measurement that post #92 says would settle it. Do not adjust a reported figure. Post what the laboratory said and put your interpretation in a separate sentence. Go to post

Selective submission and selective reporting are the two easiest ways for a result to be shaped, and blinding addresses the first while a commitment to post addresses the second.

I am aware this is the third time this month I have made this point.

20 likes in reply to #95 3mo
CN
c.niemelTL323 Apr 2026#98
CR
compounding_ruthTL4Pharmacist25 Apr 2026#99

Reports of ordinary results are more valuable than reports of remarkable ones, precisely because only the remarkable ones get posted elsewhere.

12 likes 3mo
ZO
z.okonkwoTL227 Apr 2026#100
retention_index, post #34: Dosing and purity: a vial that is 99% pure might contain 80% of its label claim if the other mass is water, counter-ion, and excipient. Purity and content are different. Both matter for different reasons. Someone will know this better than I do and I hope they say so. Go to post

Dosing and purity: a vial that is 99% pure might contain 80% of its label claim if the other mass is water, counter-ion, and excipient. Purity and content are different. Both matter for different reasons.

Happy to be the one who is wrong here if it settles the question.

26 likes in reply to #34 3mo
SR
s.radichTL230 Apr 2026#101
revision_history, post #55: Post #52 is the version of this I will quote in future. One addition. The cost of a submission is worth stating. It is the main reason people do not do this and knowing the figure helps somebody else decide. Go to post

Do not adjust a reported figure. Post what the laboratory said and put your interpretation in a separate sentence.

The number is defensible. The precision I gave it is not.

2 likes in reply to #55 3mo
M
MakinenTL2Member2 May 2026#102

The cost of a submission is worth stating. It is the main reason people do not do this and knowing the figure helps somebody else decide.

Not disagreeing with anyone above, just adding the bit I keep having to look up.

8 likes 3mo
FE
f.espinozaTL24 May 2026#103

Adding the measurement that post #102 says would settle it.

Photograph the vial and the label before opening. It costs ten seconds and it is what turns a report into something checkable.

26 likes 3mo

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