Quality and batch documentation
The certificate of analysis is the product's identity document. Ours is issued per lot, carries the batch number printed on the vial, and reports the tests below.
Identity and purity
Each lot is run on reverse-phase HPLC and reported as a percentage of total peak area at the compound's detection wavelength. Sequences above ten residues are additionally confirmed by mass spectrometry.
Fill weight control
Vials are check-weighed against the nominal fill. A deviation outside tolerance pulls the lot for re-inspection rather than being averaged into the batch record.
Endotoxin screening
Lines intended for repackaging are screened for endotoxin before release, because contamination is a downstream problem that the buyer cannot test for cheaply.
Retained samples
A retained sample from every lot is held for twelve months, so a dispute about a specific batch can be resolved against the actual material rather than a photograph.
What the COA shows
A typical certificate lists: compound name and sequence, batch number, fill strength, appearance, HPLC purity as area percentage, retention time, mass-spectrometry result, water content, and where applicable endotoxin. A certificate without a batch number is not a certificate — it is a brochure.
Research use only. Not for human or veterinary use.
Documents issued
Need a specific lot?
Send the batch number from the vial and we will return the matching certificate.
Ask for a COA