Testing

Every batch listed on this site has a certificate of analysis from an independent laboratory. The certificate is linked from the product page and names the batch, the method (HPLC or UHPLC-MS), the purity figure and the date.

We use laboratories whose reports can be verified by task number on the laboratory's own site. A certificate that cannot be verified is treated as no certificate.

Purity below 99% on the certificate means the batch is not sold.