How Is PT-141 Tested?
PT-141 is verified by independent third-party analysis — a five-point panel with a batch-specific Certificate of Analysis.
01Verification
Every lot of PT-141 is analyzed by an independent third-party laboratory — MZ Biolabs, in Tucson, Arizona — before release. Testing is separate from production, so purity and identity are confirmed by a third party, not self-reported.
02The Five-Point Panel
| Purity | Reverse-phase HPLC · ≥99% |
| Identity | Mass spectrometry vs. 1,025.2 g/mol |
| Endotoxin | LAL assay |
| Heavy metals | ICP-MS |
| Sterility | Bioburden |
03FAQ
How is PT-141 tested?
Every Ethos Bio lot of PT-141 is analyzed by an independent third-party laboratory (MZ Biolabs, Arizona) on a five-point panel: reverse-phase HPLC purity, mass-spectrometry identity, endotoxin (LAL), heavy metals (ICP-MS), and sterility or bioburden.
What purity standard does PT-141 meet?
PT-141 is released to a specification of ≥99% purity by reverse-phase HPLC, with identity confirmed by mass spectrometry against its molecular weight of 1,025.2 g/mol.
Does PT-141 come with a Certificate of Analysis?
Yes. A batch-specific Certificate of Analysis corresponding to the exact lot of PT-141 you receive ships with every order and is mirrored to your researcher account.