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

what changed for me between week 40 and week 89

Labbranch of 11 comments

Been lurking in c/tirzepatide for about 2 months and finally have something worth posting. Short version: week 32, 15mg, 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 35 threads, and the answers split roughly down the middle. What I actually…

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11 comments, started 2 years ago
u/teodor_lokken535 points·2 years ago

Yeah, 96.8% area is not the problem, the missing impurity breakdown is the problem.

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u/amylin_amyamylin142 points·2 years ago

What is the method line say? Not the technique, the actual method.

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u/priya_palacios625 points·2 years ago

PDF metadata is checkable in fifteen seconds

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u/noor_cardoso193 points·2 years ago·edited

PDF metadata is checkable in fifteen seconds

Adding to this: COA is doing more work than the comment implies.

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u/ahmed_rasmussen227 points·2 years ago

Did they give you the chromatogram or just the summary line?

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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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