Certificate of Analysis

This certificate covers one lot. It documents lot RETA10-0616 and no other. Before relying on it, check that the lot number printed on your vial label matches it character for character. A vial from a different lot has its own certificate.

What 99.8% means. Overall purity is measured by reverse-phase HPLC with detection at 214 nm. The figure is the share of the detected signal that belongs to the compound itself; the remainder is everything else the method detected in the sample.

Identity and content are separate checks. Identity was confirmed by MALDI-MS, which compares the measured mass with the mass expected for the compound. Content is the quantity found in the vial, reported in milligrams, and is why a vial can read slightly above its label strength.

The laboratory record is the source. The values on this page are transcribed from the laboratory’s certificate without change. The original document and the laboratory’s own verification code are listed below.