Quality & certificates of analysis
How each Sunbelt vial is produced, verified and documented.
From synthesis to your bench
Five checkpoints, one lot number.
- 01SynthesisPeptides are produced by solid-phase synthesis under controlled conditions and purified by preparative HPLC.
- 02Independent analysisEach production lot is analyzed by an independent laboratory for identity (mass spectrometry) and chromatographic purity (HPLC).
- 03Lyophilize & sealMaterial is lyophilized, filled into glass vials and crimp-sealed, then stored at −20 °C.
- 04Label & lotEvery vial is labeled with its lot number, so the report on file describes the material in your hand.
- 05Pack & shipVials ship in fitted foam inside a plain carton with tracking.
COA lookup
Request the report for your lot.
Enter the lot number printed on your vial label. Our online COA library is being populated; in the meantime, we'll send the report for your lot by email.
What a COA covers
Reading your certificate.
IdentityMass specConfirms the observed molecular mass matches the expected compound.
PurityHPLCReports the main peak as a percentage of total peak area for that lot.
TraceabilityLot matchTies the report to the lot number on your vial label.