I want to perform some radio labeled transfer assays using Carbon 14 labeled amino acids. I know some sources e.g., PerkinElmer, Moravek for radioactive chemicals. If you know any other please let me know.
Have you tried ALMAC? Sigma-Aldrich also has good stock. Follow the link, https://www.sigmaaldrich.com/chemistry/stable-isotopes-isotec/stable-isotope-products.html?TablePage=15402755. You could also try JPT-peptide Technologies. https://www.jpt.com/products/isotope-labeled-peptides/