DL-HOMOCYSTEINE (3,3,4,4-D4) is a deuterium-labeled, sulfur-containing amino acid belonging to the homocysteine family, featuring a side chain with a terminal thiol group and a backbone bearing an amino group and a carboxyl group. The molecule is provided as the DL stereochemical form and incorporates four deuterium atoms at the 3,3,4,4 positions of the aliphatic side chain, allowing the thiol-bearing thioether/thiol chemistry typical of homocysteine analogues to be studied while the labeled carbon-hydrogen framework is tracked by mass or NMR methods. As a free amino acid, it is used in isotopic tracing, quantitative analytical method development, and structure-property or reaction studies where side-chain deuteration supports monitoring of homocysteine-related transformations and incorporation into chemically synthesized peptide or conjugate frameworks.
CAT No: L-Iso-0319
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