For laboratory research use only  ·  Not for human or veterinary use, consumption, or diagnostic purposes
Purity · Precision · Verification

Research peptides,
tested to the
third decimal.

Analytical reference standards and reagents for laboratory work. Every lot is released with its own HPLC and mass spectrometry certificate of analysis, matched to the batch number on the vial.

Browse catalog See the test data
99%+ HPLC purity Mass spec verified Batch COA included US laboratory

Supplied to laboratories, universities and research organisations. Purchasers must be 21 or older and agree to the research use terms at checkout.

Club Pep Research Peptide
HPLC purity
0.00%
Batch
CP250501 · COA on file
Science backed
Peptide-driven research supply
Cold chain shipping
Dispatched from the USA
Quality assured
Third-party tested lots
Batch COA included
Matched to your vial number
Catalog

Research compounds

A starting selection of lyophilised reference compounds. Independent third-party analytical testing is performed on every production batch before release.

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MORE COMPOUNDS ADDED EACH MONTH · BULK AND INSTITUTIONAL PRICING ON REQUEST

HPLC trace · Lot CP250501
PASSED
0.04.08.012.0 min RT 6.42 · 99.74%
MethodRP-HPLC / UV 214nm
IdentityMS confirmed
Released05 / 2026
Quality control

Analytical standards

Every lot is independently tested by accredited US laboratories before it is released for sale. The certificate travels with the batch, so what you receive is what was measured.

Identity
Purity
Peptide content
Heavy metals
Sterility
Endotoxins
Appearance
Residual solvents
0%+
HPLC purity
Chromatographic purity confirmed against molecular reference standards.
0%
Mass spec signature
Molecular identity confirmed by mass spectrometry on every production run.
0
Quality checks
An eight-point protocol covering identity, purity, sterility and contaminants.
Documentation

Frequently asked questions

Technical information about the compounds, the testing protocol and how documentation is issued.

All compounds are released at 99% or higher by RP-HPLC. The exact figure for the lot you receive is printed on its certificate of analysis, which is usually between 99.5% and 99.8%. Anything that does not clear the threshold is rejected rather than downgraded.

Yes. Each COA is tied to a single production lot and carries that lot number, the test date and the analytical results for that run. The same number appears on the vial label, so you can match the paperwork to the material in front of you. Historical COAs stay available for reference.

Orders are accepted from laboratories, universities, research organisations and qualified individual researchers aged 21 or over. At checkout you confirm that the material is for in-vitro laboratory research only and will not be administered to humans or animals.

Lyophilised vials are held at 2–8 °C and dispatched from the United States in insulated packaging with a cold pack. Domestic orders placed before 2pm ship the same business day and typically arrive in two to three days. Tracking is issued as soon as the label is created.

Sealed lyophilised vials held at 2–8 °C carry a 24-month retest date from the manufacturing date, both printed on the label. Storage guidance after reconstitution is documented per compound in the technical sheet included with each order.

Yes. Bulk quantities, alternative fill weights and institutional purchase orders are handled case by case. Send the compound, quantity and required documentation through the contact page and you will get a written quote with lead time.