Batch lookup
Every box carries a batch number. Type it in and you get the analytical data for the exact vials in front of you — not a generic specification sheet.
Enter your batch number
Printed on the end flap of the box and on each vial label. Case, spaces and dashes do not matter.
RP-HPLC at 220 nm
Reverse-phase high-performance liquid chromatography separates the target peptide from truncated sequences, deletion products and residual reagents. Purity is the area of the main peak as a percentage of total peak area.
Mass spectrometry
Purity alone only tells you a sample is clean. Mass spec confirms the molecular weight matches the intended sequence — that it is the right molecule at all.
Heavy metal screen
Screened at batch release, because synthesis and purification are where contamination is introduced. Reported as a pass against the reporting limit.
Questions about batches
My batch is not in the system yet
Newer batches are added as certificates come back from the lab. Email support@recoverytechlabs.com with the batch number and we will send the certificate directly, usually the same working day.
Can I see a certificate before ordering?
Yes. Tell us the compound and we will send the certificate for the batch currently in stock, so you know what you are buying before you pay for it.
What does ">99% purity" actually mean?
It means the main peak accounts for more than 99% of the total peak area by HPLC. It does not mean the vial is 99% peptide by mass — lyophilised peptides also contain residual counter-ions and water, which is normal and expected. Read more in how purity testing works.
Why does the expiry date look so far out?
Lyophilised peptides stored sealed at −20 °C in the dark are stable for years. Once reconstituted the useful window is far shorter — see storage and stability.
