A certificate whose chromatogram axes do not match its stated method

Posting this under the heading it deserves: A certificate whose chromatogram axes do not match its stated method Everything below is what sits behind that.

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

• Compound: retatrutide
• Independent testing: Medutest
• Method as reported: reversed-phase HPLC, 280 nm
• Result: 98.7% 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.

On the opening post — agreed on the reasoning, with one qualification.

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

Evasion when asked: if a supplier does not clarify when asked specifically for method details, counter-ion form, or batch origin, that itself is a red flag worth documenting.

This follows post #4 rather than contradicting it.

Pricing patterns: unusually low prices for what are otherwise consistent with market rates might indicate lower quality, stolen goods, or a scam. Unusually high prices without justification raise different flags.

Inability to trace lots: if you ask "where was this synthesised, by whom, under what conditions" and cannot get a clear answer, that is a red flag. Traceability is not glamorous but it is foundational.