For laboratory research use only · Not for human or veterinary use

Guides for buying at volume.

Written for the person raising the purchase order: what the documents say, how the numbers are built, how to plan and store an order of a thousand vials. Nothing here describes what a compound does.

6 guides

Reading a COA
What each block of a lot certificate for a lyophilized peptide says, how to check it, and how to match the document to the vials on your dock. Updated 2026-09-01.
Pricing Explained
Why this catalog prices per vial, why fill weight and molecule size set the ladder, how the three per-line tiers work, and where contract pricing begins. Updated 2026-09-01.
Reading a Quote
What a written wholesale quote for research compounds must restate, how to compare two quotes line by line, and the two things no quote should ever contain. Updated 2026-09-01.
Storing vials at volume
Receiving sealed lyophilized vials at volume: what to inspect on arrival, matching lots to certificates, storage at −20 °C, rotation and the storage log. Updated 2026-09-01.
Sizing an order
Planning a wholesale order in kits of 10: the 100-vial minimum in any mix, per-line tiers at 1,000 and at 2,500 vials, fill weight, and the purchase order. Updated 2026-09-01.
Glossary
Twenty-five procurement terms defined: certificate of analysis, lot, HPLC purity, endotoxin, lyophilized, fill weight, kit, tier, contract pricing. Updated 2026-09-01.

Read before the purchase order

What the certificate says, how the tiers are built, how a thousand vials are kept.