Amino Acid Mixes | Eurisotop

Stable isotope-labeled and unlabeled amino acid mixes for metabolomics research

To aid research development and application of amino acids, Eurisotop has formulated various mixtures of stable isotope-labeled (and unlabeled) amino acids. These include mixes of canonical and branched-chain amino acids (MSK-CAA and NSK-BCAA), a mix of rare or unnatural noncanonical amino acids (MSK-NCAA), and mixes of amino acids/derivatives (e.g., NSK-A, NSK-AA3). All mixes are well characterized for use in quality control and qualification/quantification studies.

Discover our Amino Acid Mixes range →

Our Amino Acid Mix Families

🧪 Canonical Amino Acid Mix

MSK-CAA is a dried-down mix of 20 uniformly ¹³C/¹⁵N-labeled canonical amino acids, complemented by an unlabeled analogue (MSK-CAA-US) for calibration curves and quality control.

💪 Branched-Chain Amino Acid Mix

NSK-BCAA is a standard mix of labeled allo-isoleucine, isoleucine, leucine, and valine, supporting metabolism, clinical MS, and lipidomics applications.

🧠 Non-canonical Amino Acid Mix

MSK-NCAA is a dried-down mix of 7 labeled, rare or unnatural amino acids, also available unlabeled (MSK-NCAA-US) or bundled with MSK-CAA as a combined canonical/non-canonical set (MSK-CNCAA).

🧪 Amino Acid Standards Mix Sets

NSK-A and NSK-A1 are dried-down sets of 12 labeled amino acids designed for quantitative MS/MS screening (e.g., newborn screening), and can be combined with other NSK/MSK mixes for a broader internal-standard panel.