L-CITRULLINE (UREIDO-13C; 3,3,4-D3) is an isotopically labeled, non-proteinogenic amino acid derivative of citrulline featuring a ureido side chain in which the carbonyl carbon is enriched with 13C and the side-chain positions 3,3,4 are deuterated (D3). The molecule contains a free α-amino group and a free α-carboxyl group while the side chain bears a urea (ureido) functionality that can participate in hydrogen-bonding and polar interactions, with stereochemistry consistent with the "L-" designation in the name. As an isotopically labeled tracer, it is used in analytical method development and isotopic tracing experiments to follow incorporation, transformation, or quantification of citrulline-related species in biochemical and chemical studies.
CAT No: L-Iso-0169
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