Third-party HPLC + mass spec on every batch. Cold pack sized to your ZIP. Reply-to support.
Batch documentation
A batch record is the paper trail behind one production run — synthesis date, intermediates, in-process checks, third-party assay, and the signatures of the people who handled it. Most suppliers will never show you one because they don't have one. Five things worth knowing before you buy from anyone.
Spec sheet is the manufacturer's claim about the product line ("≥99% purity, MW X"). Batch record is the run-by-run history of one production lot. COA is one section of the batch record — the third-party assay tied to a specific lot. Suppliers conflate the three on purpose. Ours don't.
Synthesis date, raw material lot numbers, in-process pH/temperature/yield checks at each step, lyophilization parameters, container/closure spec, third-party assay with HPLC traces, residual solvent test, and signatures. Each step has a date, a tech, and a result. The binder is dozens of pages, not a one-page summary.
The batch record only protects you if the chain it documents is intact. Synthesis to lyophilizer to fill line to storage to tracked dispatch. Any link without documentation is a gap you can't audit. We log every handoff with timestamps. The summary on your order page references the batch ID; the full binder ships on request.
Resellers don't have one — they're shipping someone else's lot and only see the COA the manufacturer chose to include. Direct suppliers without their own QC don't have one because the in-process checks were never run. The test for who's who: ask for the batch record on your most recent shipment. The answer tells you the whole story.
Three pages do the most work: the synthesis cover (date, scale, lot ID), the third-party assay (HPLC + mass spec + residual solvents), and the release signature (who released the lot, when, and against which spec). If those three pages line up, the rest is supporting documentation. We mark them in the binder you receive.
The shortcut to evaluating any supplier in five minutes: ask for the batch record on your last shipment. The reply — or the silence — tells you what you need.
Common questions
We ship the order summary referencing the batch ID; the full binder is sent on request when you reply to your order email. Most customers want the binder once, on their first order, then just the COA on subsequent shipments of the same batch line.
Digital — sent as a single PDF tied to your order ID. The physical paper original lives in our QC archive against the production lot.
Indefinitely against the lot. If you reorder a batch line two years later and need the original binder, reply to the new order email with the old order ID and we'll send both.