The purity displayed in our catalog and the technical data section of our online product information pages is the minimum content of the active ingredient that any given batch will contain. Minor batch to batch variation, which has no effect on the overall biological properties of the material, may take place due to manufacture whereby small and unpredictable changes in the degree of hydration of the product, or a change in the nature of the salt counter ion often occur.
Bioactive chemical purity
Tocris bioactive chemicals are of high purity, typically > 99% by HPLC. For purity of an individual product please consult the Certificate of Analysis (CoA).
Unless otherwise stated, peptides supplied by Tocris have a purity of > 95%. For purity of an individual product please consult the Certificate of Analysis (CoA).
Tocris products are not weighed out under sterile conditions, and should not be treated as such. If required, sterile solutions can be prepared by subsequent filtration.
Chemical purity is assessed using an array of techniques including HPLC, chiral HPLC, NMR, microanalysis, high voltage electrophoresis, melting point, optical rotation, TLC, and mass spectrometry as appropriate. All data is kept on file and available for inspection on request - please contact us for details. In all cases we believe that the purity of any material supplied by Tocris will match or exceed the purity of the product originally reported in the scientific literature.
Please complete a technical enquiry form if you don't find the answer you are looking for.
Alternatively, please contact us for further information and assistance.
View all Technical Support common questions.
Find multiple products by catalog number
Potent, selective LRRK2 inhibitor
Tocris is the first to launch GSK2578215A, licensed from GlaxoSmithKline, for the study of Parkinson's Disease.