Identity verification
HPLC-MS
Each peptide is verified against its theoretical molecular weight using high-performance liquid chromatography coupled to mass spectrometry. Identity must match within 1 mass unit.
The process
From synthesis to your bench.
01
Synthesis
Solid-phase peptide synthesis by domestic US suppliers with documented supply-chain provenance. No re-labelled overseas product.
02
Identity & purity
Every batch enters our incoming-quality process. HPLC and MS run before any vial is filled. Failed lots are returned, not blended.
03
Release testing
An independent third-party lab issues a Certificate of Analysis covering identity, purity, endotoxin, residual solvents and water content. Lot numbers traceable from order to source.
04
Fulfilment
Tamper-evident vials, lot numbers on every label, insulated cool-ship packaging. Discreet outer packaging with shipping insurance included.
The test panel
What we measure, and where the bar sits.
Purity
≥ 98%
Reverse-phase HPLC quantifies the target peptide against minor synthesis byproducts. We hold every batch to a minimum 98% area-percent purity threshold.
Endotoxin
< 0.1 EU/mg
Bacterial endotoxin is screened by LAL (Limulus Amebocyte Lysate) assay. Results well below the USP <85> compendial limits for parenteral research-grade material.
Residual solvents
< 0.5%
Gas chromatography quantifies residual TFA and synthesis solvents. ICH Q3C class-2 limits are the upper bound; our batches routinely run an order of magnitude lower.
Independent verification
Every result independently signed off
Release testing is performed by an external, ISO-accredited laboratory we don’t own. The Certificate of Analysis carries their stamp, their signatory, and the raw instrument data on request.
A note on standards. AeroPeptides products are sold strictly for in-vitro research and laboratory use. The internal quality thresholds described above are research-grade specifications; they are not pharmacopoeial release criteria and do not constitute approval for human or veterinary application. See our Research Use policy for the full scope of permitted use.