How we source and verify each compound
Every batch supplied by BSR undergoes a defined verification process before dispatch.
Supplier qualification
We work exclusively with GMP-compliant synthesis facilities that operate under ISO 9001-certified quality management systems. Each supplier is assessed against our qualification criteria before onboarding, covering synthesis purity standards, analytical testing capabilities, and cold-chain logistics.
Third-party analytical testing
Each batch is independently tested by an accredited UK analytical laboratory before release. Testing includes:
- HPLC purity analysis (minimum 98% purity threshold)
- Mass spectrometry for molecular weight confirmation
- Endotoxin testing (LAL method)
- Moisture content (lyophilised peptides)
A Certificate of Analysis (COA) is issued for every batch and linked to the corresponding product listing.
Batch traceability
Each product is assigned a unique batch code traceable from synthesis through to dispatch. COAs are available for download from the product detail page using the batch code printed on the vial label.
Research-use classification
All compounds supplied by BSR are classified strictly for in-vitro and preclinical research use. They are not intended for human or veterinary administration. Orders are fulfilled only to verified research institutions, laboratories, and registered researchers.
Quality non-conformance
In the event a batch fails our acceptance criteria, product is quarantined and not released for sale. Affected customers with outstanding orders are notified and offered either a replacement from the next qualifying batch or a full refund.