Amino Acid, Peptides & Protein Standards

Designed to accommodate top-down and bottom-up proteomic workflows, Sigma-Aldrich’s amino acids, peptides, and protein analytical standards include heavy and light peptides, enzymes, intact proteins, and amino acids as well as their stable-isotope labeled analogs. These standards are suitable for mass spectrometry-based or immunoassay testing applications in biomarker discovery, pharmaceutical research, clinical and diagnostic testing, proteomics, and food authentication.

 
 

 

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