L-CYSTEINE (1-13C) is an isotopically labeled, naturally occurring proteinogenic amino acid belonging to the cysteine class, featuring a thiol-bearing side chain attached to the α-carbon of the amino acid backbone. The molecule contains both an amino group and a carboxyl group and bears a sulfhydryl (-SH) functional group that can participate in redox- and nucleophile-related chemistry, with the carbon-13 label specified at position 1 of the amino acid framework. L-CYSTEINE (1-13C) is used in isotopic tracing and quantitative analytical method development to monitor incorporation, transformation, or distribution of cysteine-derived carbon in peptide or protein-related studies and related chemical labeling workflows.
CAT No: L-Iso-0175
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