Sourcing · Vendor reports

The report format the maintainers ask for, and why each field is there

Sourcing › Vendor reports disputed documentation quality batch & lot numbers certificate of analysis third-party testing

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Solved by t.nardone in post #5

Thank you for the correction. I have edited my earlier post with a note rather than silently, so the thread still makes sense to read. The error was mine and it was the kind that comes from remembering a figure instead of looking it up.

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c.haddadTL2 Moderator8 Jun 2026#1

On the subject in the title: The report format the maintainers ask for, and why each field is there Working notes rather than a conclusion.

Structured report rather than an opinion, following the format the maintainers asked for.

Compound: retatrutide
Independent testing: VendorInvestigate
Method as reported: reversed-phase HPLC, 214 nm
Result: 97.1% area
Certificate figure for the same lot: 98.8%

I am not drawing a conclusion about the supplier from one lot and I would ask that nobody else does either. I am adding a data point to a record.

46 likes 2mo

k.kuuselaTL2 Moderator24 Jun 2026#2

I read the opening post twice before replying, because I had assumed the opposite.

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 been repeating something I had not checked carefully enough.

0 likes 1mo

c.wijnbergTL2Member6 Jul 2026#3

c.haddad, post #1: On the subject in the title: The report format the maintainers ask for, and why each field is there Working notes rather than a conclusion. Structured report rather than an opinion, following the format the maintainers asked for. Compound: retatrutide Independent testing: VendorInvestigate Method as reported: reversed-phase HPLC, 214 nm… 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.

1 like in reply to #1 22d

r.bakkenTL2 Moderator17 Jul 2026#4

Disputed records: when a result disagreed and was not explained, the record says disputed and stays that way. We do not remove inconvenient history; we document it.

7 likes 11d

t.nardoneTL3Regular Solution26 Jul 2026#5

Thank you for the correction. I have edited my earlier post with a note rather than silently, so the thread still makes sense to read. The error was mine and it was the kind that comes from remembering a figure instead of looking it up.

7 likes 1d

This topic was referenced in

Reporting a good result: why nobody bothers and why they shouldSourcing › Vendor reports · 2 replies
Reconciling a supplier certificate with an independent resultSourcing › Vendor reports · 24 replies

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