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c/coa·submitted 2 years ago by u/fatima_wojcik

[Lab] 8th independent test on BCH, and the trend is the interesting part

Labbranch of 6 comments

Been lurking in c/tirzepatide for about 9 months and finally have something worth posting. Short version: week 96, 5mg, and certificate of analysis is the bit I still cannot get a straight answer on. I have read the wiki, I have read the last 23 threads, and the answers split roughly down the middle. What I actually…

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6 comments, started 2 years ago
u/purity_pedantanalytical179 points·2 years ago

Four months on the site and I was confusing area% and mass% in every post I made. One explainer thread and it clicked.

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u/freya_baptista42 points·2 years ago

area% is not mass%, and here is exactly why it matters

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u/tove_ogunleye33 points·2 years ago

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

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u/cormac_pereira23 points·2 years ago

This is the correct framing. The COA structure matters as much as the number.

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u/dario_vermeulen5 points·2 years ago

the method line is doing real work, not just window dressing

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u/sig_figs_sammod · analytical4 points·2 years ago·edited

This is the correct framing. The COA structure matters as much as the number.

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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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