About Portland Peptide Company

Portland Peptide Company is a research materials supplier operating from Portland, Oregon. We stock, store and ship peptides, peptide complexes, blends, pre-solubilised solutions and reference materials, and we supply them to account holders who have confirmed that the material is for laboratory research.

We are a supplier, not a laboratory. We do not synthesise material ourselves and we do not run our own analytical instrumentation. What we do is take custody of material, keep it identified by lot, publish the specification and the analytical records that come with it, and ship it under conditions appropriate to its form.

The catalog is organised by what the material is rather than by what anybody hopes it will do. Five categories cover it: peptide sequences, peptide complexes, peptide blends, peptide solutions and reference materials.

Every listing carries the identity and specification data we hold for that item: chemical name, peptide sequence where applicable, molecular formula, molecular weight, CAS number, physical form, appearance and net quantity. Where a field is not established for a compound, the listing omits the row rather than printing a plausible value. A short specification table is a more useful thing than a complete-looking one.

No listing on this site describes a use, a dose, a route of administration, a protocol or an outcome, and none ever will. That is not a legal hedge bolted onto the copy — it is the rule the catalog is written under, and it is why the product pages read as specification sheets.

Inventory is tracked by lot, and analytical documentation is attached to the lot it describes rather than to the product line. That distinction is the whole point of lot-level traceability: a certificate is a record of one batch of material run on one date, and a certificate presented as a property of a product name tells you nothing about the vial in front of you.

Where a laboratory report exists for a lot, the product page shows the issuing laboratory, the report number, the test date and, where the report states them, the assay result and the method. Where no report has been attached, the page says so plainly. We do not describe a lot as tested until a document supports it. The quality and testing page covers this in detail.

Reading the catalog requires nothing. Specifications, molecular data, lot records and prices are public, because a researcher evaluating a supplier should not have to open an account to find out what is stocked.

Ordering is different. It requires a verified account and acceptance of the research use agreement, which records that the material is being acquired for laboratory research and not for human or veterinary use. Accounts are reviewed, and we decline orders we are not comfortable with.

We ship across the United States. Orders delivering within Portland, OR qualify for free same-day delivery above the order threshold when placed by 2:00 PM PT on a business day — the practical benefit of a supplier being in the same city as the laboratory.

Shipping restrictions, delivery expectations and refund eligibility are set out on the shipping policy and refund policy pages.

Account holders can reach us from the message thread on their account, which arrives attached to their order history. A published contact address for people who cannot sign in is on the contact page.