VendorInvestigate is the most under-discussed thing on this board
VendorInvestigate is the most under-discussed thing on this board — a position I have arrived at slowly and would like tested. Started buying small deliberately, tested every lot for the first four, then stopped testing every lot because there was nothing to find. Kept a spreadsheet of quoted versus actual lead time…
What a batch record should carry: the lot identifier, the date of analysis, the method including column and gradient, the individual related substances rather than a total, and the storage condition the stability statement was written against.
That reads as a recommendation and the source pages deliberately are not. They are a record you use to make your own decision.
Agree. The verification log is the part with the checkable facts in it; the number at the top is just a summary of a lot of averaging.
a claim with no batch number is a marketing document
Right — CPC publishes the method line on the certificate, and once you have seen one that does you notice every one that does not.
Disagree that reviews are worthless. They are worthless when they say "fast shipping A+++". A dated one naming a compound and a document is evidence.
buy small first, test it, then decide