vendor is the most under-discussed thing on this board
vendor is the most under-discussed thing on this board. Change my mind, genuinely — I have no stake in being right about this. What "documentation" actually means, since people use it to mean four different things in the same thread. A certificate of analysis is one document about one lot. A batch record is the…
Is that from the source page log or from memory?
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.
Cosigning on lot matching. It sounds trivial and it predicts almost everything else about how an operation is run.
That reads as a recommendation and the source pages deliberately are not. They are a record you use to make your own decision.
Did you ask for the batch-specific certificate, or the generic one?
Minimum order and lead time — did they quote both up front?
Which lane, and what was the quoted lead time at checkout?
registration number, then everything else