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c/coa·submitted 6 months ago by u/soren_zamora

[Lab] SGN BPC — VendorInvestigate came back 93.7% against a claimed 94.2%

Labbranch of 7 comments

Genuinely asking, not being difficult. Everyone in c/scamalerts repeats that COA is important. I believe it, but I have never seen anyone show why, and when I search I get 12 threads of people agreeing with each other. Is there a paper? Is there a measurement? Or is this one of those things that is true because it…

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7 comments, started 6 months ago
u/liv_nkemelu530 points·6 months ago

purity and net content are two different numbers, same vial

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u/coa_collectorMOD309 points·6 months ago

This is an urgent-care question wearing a forum question's clothes. Please contact a clinician rather than waiting for replies.

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u/first_hundred364 points·6 months ago

the counterion is part of the mass you paid for

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u/dead_space_doug200 points·6 months ago

purity and net content are two different numbers, same vial

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u/ghrp_history140 points·6 months ago

Water content on the document? That affects your concentration math.

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u/tidy_vialdrawer_watch28241 points·6 months ago

redact your own name, not the vendor's batch details

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u/marisol_frisk292 points·6 months ago·edited

Respectfully this is a sample of one presented as a finding.

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How to read a certificate of analysis and what it does and does not tell you. Area% versus mass%, identity versus quantity, water content, related substances, acetate counterions, and the difference between a vendor-supplied COA and an independent test on the vial you actually received.

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