COA vs purity — genuinely asking which matters more
I have had 19 orders now and I keep a table, so here is the honest summary rather than a vibe.
Material has been consistent. Communication has not. Shipping has varied by about 8 days on nominally the same lane, which matters more in summer than in February.
The independent number came back 96.8% against a claimed 99.1%, which I read as agreement rather than a discrepancy — inter-lab variance on this assay is a point or two either way and treating one lab as ground truth is how people end up in pointless arguments with vendors.
Batch number is in the comments. Ask if you want the method.
best — the order this archive was captured in
no "is this good?" without saying what the compound and claimed purity are
Strongly agree. Mass% and area% are answering different questions on the same document.
Disagree. What you are describing is consistent with certificate of analysis, not with what you concluded.
Cosigning. The batch number is load-bearing information.
Every time this gets posted it hits the front page and every time someone has to re-explain it.
Removed a chain here. The rule is one line long and it is not negotiable.
Cosigning. The batch number is load-bearing information.
post the whole document, not the headline number