Manufacturer COA
We collect the producing lab's certificate of analysis for the exact lot: purity by HPLC, identity by mass spectrometry and net content.
Manufacturer COA
Research compounds & laboratory reagents
Every compound lot, checked twice.
Each compound lot is documented twice: the manufacturer's certificate of analysis and an independent lab report that VialTrust pays for. We publish both, side by side, with published prices and invoiced orders.
How Double Check works
Two documents for every compound lot.
A single COA is a vendor vouching for itself. We add a second, independent check on the same lot, and we publish both.
Independent lab
We send samples from the same lot to an independent analytical lab. VialTrust pays for this test; the manufacturer does not.
Independent report
Side-by-side report
We publish both results together for the lot. If the independent result doesn't confirm identity, purity or content, we pull the lot from sale and mark it Rejected.
COA
Independent
Our rule: every compound lot gets an independent report, published in full, including the status while testing is in progress. If a lot fails, we stop selling it and say so. How we verify →
Catalog
Published prices, lot-level documents.
Ordering
Simple ordering for labs and research buyers.
Published pricesPrices are on every product page. Pick a size and quantity, then request an invoice.
Invoiced ordersWe confirm your order and email an invoice. Nothing is charged on this site.
FedEx 2Day shippingShips from Florida, Monday–Friday. Free on orders over $200; otherwise $29 flat.
Research use onlyWe sell for laboratory research only. No dosing or usage guidance.
Ordering in bulk or for an institution?
Request a quote or send a purchase order, and tell us the documentation your QA team needs.