Quality & Testing
Our catalog is backed by independent third-party certificates of analysis. Every certificate is published in full and can be verified directly with the lab that issued it.
30
Published certificates
2
Independent testing labs
24/30
Certificates at 99%+ purity
22
Fentanyl screens: not detected
Lowest purity on any published certificate: 95.58%. Figures update automatically as certificates are added.
How we test
- STEP 1Independent lab testingSamples from our batches are sent to independent, third-party analytical laboratories for testing.
- STEP 2Identity confirmedThe lab confirms the compound is what the label says, by HPLC retention-time match against a reference standard or by mass spectrometry.
- STEP 3Purity measuredPurity is measured by HPLC (reverse-phase, 214 nm) or UHPLC-MS and reported as a percentage of the target compound.
- STEP 4Content quantifiedNet content is measured and compared with the amount on the label, so you can see what is actually in the vial.
- STEP 5Contaminant screenILS Laboratories certificates include a fentanyl screen (immunoassay, 50 ng/mL cutoff).
- STEP 6Published & verifiableEach certificate is published with the lab's verification code, so you can confirm it directly with the lab.
Our testing labs
ILS Laboratories
ISO/IEC 17025San Diego, California. Their certificates state ISO/IEC 17025 accreditation.
- Purity by RP-HPLC (214 nm)
- Identity by retention time vs. reference standard
- Net content quantitation
- Fentanyl screen (50 ng/mL cutoff)
BioRegen
UHPLC-MSIndependent analytical testing lab.
- Identity and purity by UHPLC with mass spectrometry
- Full-scan mass spectrometry analysis
- Quantity vs. labeled amount (where reported)
Reading a certificate
- Purity (HPLC)
- The share of the target compound among all compound-related peaks detected. Higher is better.
- Identity
- Confirms the sample matches the expected compound.
- Net content
- The measured amount in the vial, compared with the labeled amount.
- Batch / Lot
- The production batch the sample came from. A certificate applies only to the batch tested.
- Verification code
- The code printed on the certificate that the lab uses to confirm it is genuine.
Verify it yourself
- 1Open the certificate on our COA page.
- 2Note the verification code shown with it.
- 3Tap Verify to go to the lab's site and enter the code to confirm the results.
For Research Use Only (RUO): Certificates apply only to the batch tested. All products are sold strictly for laboratory research and are not for human, clinical, medicinal, or veterinary use.
