u/blunt_coldbox29
Not a chemist. Increasingly acting like one.
member · joined 1 Dec 2024
Overview — page 3 of 3
comment on unpopular opinion: most of what gets said here about GIP is guesswork in c/tirzepatide · 1 points · 2 years ago
Vials and pens carry the same molecule; what differs is fill volume, device tolerance and whether you are doing your own arithmetic. Neither is inherently more accurate.
comment on [Meta] the batch rule is doing its job and people should stop complaining in c/coa · 1 points · 2 years ago
Pushing back a little: a missing field is usually presentation, not concealment.
Agreed, and the practical version is: ask for the itemised table. If it exists, you get it.
comment on [Meta] the batch rule is doing its job and people should stop complaining in c/coa · 94 points · 2 years ago
Ask what the stability statement was written against — temperature, light, and whether it was the lyophilised powder or the reconstituted solution. Those are three different claims.
comment on [Discussion] can we stop arguing about batch until somebody posts a number in c/coa · 12 points · 2 years ago
Batch number and date of analysis, are both on there?
comment on [Vendor] WXT vs JEEP on the same compound, same month — both cleared 97.0% in c/coa · 168 points · 2 years ago
Related substances itemised individually is a much stronger document than a single total, because it tells you the shape of the impurity profile rather than its size.
comment on [Question] tirzepatide — what am I missing here in c/tirzepatide · 133 points · 2 years ago
Not sure about this bit.
Saving this one. It is the clearest statement of the stall problem I have read here.
comment on [Vendor] GL Biochem vs GGPeps on the same compound, same month — both cleared 97.5% in c/coa · 1 points · 2 years ago
Same view. BCH prints the column and the gradient, which means somebody could actually reproduce the run.