A research supplier built
around evidence.
Deltapep is a US-based supplier of research-grade peptide reference materials. We exist because too much of the market ships unverified product with no batch traceability. Our answer is simple: manufacture in the USA, test with an independent lab, and publish the COA before you pay.
99.0%+
MINIMUM HPLC PURITY SPEC100%
LOTS WITH PUBLISHED COA<24h
SAME-DAY DISPATCH CUTOFF21+
VERIFIED RESEARCHER ACCESS
Reference materials researchers
can actually cite.
Deltapep was founded by a small group of chemists and lab operators frustrated with the state of the research-peptide supply chain. Certificates were generic, lot codes didn't match, and questions went unanswered.
We rebuilt the workflow from the vial up. Every batch we release is purified in-house, sampled, and sent to an independent lab for HPLC and mass spectrometry testing. The signed COA is attached to the exact lot code stamped on the vial you receive.
The result is a catalog of reference compounds you can source with confidence and cite with a paper trail.
Four standards, applied to every lot.
Verifiable purity
Every lot is independently analyzed by third-party laboratories using HPLC for purity and mass spectrometry for identity confirmation. If it isn't on the COA, we don't claim it.
USA manufacturing
Synthesis, lyophilization, and fill-finish happen inside a controlled facility on US soil — not sourced from an unnamed overseas broker.
Lot-level traceability
The code on the vial ties directly to the batch record and the COA on the product page. Same lot in, same lot out — no substitutions.
Research use only
Our materials are reference compounds for qualified in-vitro research. We do not market for human use and we do not make therapeutic claims.
How a Deltapep lot gets to your bench.
Synthesis
Solid-phase peptide synthesis in a controlled US facility with documented reagents and batch records.
Purification
Preparative reverse-phase HPLC brings each batch to specification before lyophilization and vial fill.
Third-party testing
Sealed samples are shipped to an independent laboratory for HPLC purity and MS identity confirmation.
COA + release
The signed Certificate of Analysis is attached to the lot code, published on the product page, and shipped with the order.
Research use only.
Not for human consumption.
Deltapep products are reference materials sold strictly for in-vitro laboratory research and analytical study by qualified professionals aged 21 or older. Nothing on this site is a therapeutic, supplement, food, or veterinary product, and we make no health or medical claims.
Browse the current catalog or reach the lab directly for bulk inquiries and custom reference standards.