Verify your peptide.
Every batch. Every time.
Independent third-party verification of identity, purity, and quantity for every peptide we ship. Enter your batch ID below to view the certificate of analysis (COA) for your order.
Our testing process
Every production lot is released only after passing a defined panel of analytical tests. Testing is performed by ISO/IEC 17025-accredited third-party laboratories. The resulting certificates of analysis (COA) are issued under each batch’s unique verification ID and are accessible through the lookup above.
HPLC — Purity
Reverse-phase high-performance liquid chromatography (RP-HPLC) at 214/220 nm to quantify chromatographic purity and detect related impurities.
Mass spectrometry — Identity
ESI-MS confirms the molecular weight of the active peptide against its theoretical monoisotopic mass to verify sequence identity.
Peptide content — Quantity
Net peptide content (the mass of peptide active per vial, excluding counter-ions, water and residual solvents) reported as % w/w of total fill.
Appearance & solubility
Visual inspection of the lyophilised solid (colour, form, occlusions) and reconstitution check in bacteriostatic water for clarity and absence of particulates.
Residual solvents
GC headspace screening for residual TFA, ACN and other process solvents against ICH Q3C class limits.
Endotoxin (LAL)
Limulus amebocyte lysate test on representative lots intended for parenteral research applications, reported in EU/mg.
Release specification
| Attribute | Method | Specification |
|---|---|---|
| Identity | ESI-MS | Observed [M+H]+ matches theoretical ± 0.5 Da |
| Chromatographic purity | RP-HPLC, 214 nm | ≥ 99.0% area |
| Net peptide content | UV / N% / HPLC | Reported on COA, ≥ 75% w/w typical |
| Appearance | Visual | White to off-white lyophilised cake; clear on reconstitution |
| Residual solvents | GC-HS | Within ICH Q3C limits |
| Bacterial endotoxins | LAL (kinetic chromogenic) | Reported on COA where applicable |
Independent laboratories & quality framework
Analytical testing is contracted to independent laboratories operating under ISO/IEC 17025 accreditation. Manufacturing is performed in facilities aligned with ICH Q7 / WHO GMP guidance for active pharmaceutical ingredients used in research. No analytical work is performed in-house, and no result is reported by the manufacturer alone.
ISO/IEC 17025
All chromatographic and spectrometric assays are performed by laboratories whose scope includes peptide identity and purity determination.
GMP-aligned manufacturing
Synthesis is conducted under documented batch records, deviation control, and release-by-QA workflows aligned with ICH Q7.
Chain of custody
Each retained sample is sealed and logged against its batch ID at release. The same ID is printed on the vial label and on your packing slip.
Tamper-evident labelling
Vials are sealed with tamper-evident closures. The verification QR code on the carton resolves to the same batch URL as the lookup above.