TCI C0514 L-Cysteic Acid (CAS 498-40-8) is a non-proteinogenic amino acid formed by full oxidation of L-cysteine to the sulfonic acid. Because cysteine and cystine degrade during protein hydrolysis, samples are commonly oxidized with performic acid so that sulfur is measured reliably as cysteic acid. It therefore serves as an essential reference standard in amino acid analysis and in sulfur amino acid quantification for food, feed, and nutrition studies. AMI Scientific supplies this TCI grade in 1 g and 25 g packs for biochemistry and analytical laboratories.
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- SANCHEZ‐CANO et al. (1991). ChemInform Abstract: Synthesis of L‐Cysteic Acid by Indirect Electrooxidation and an Example of Paired Synthesis: L‐Cysteic Acid and L‐Cysteine from L‐Cystine.. ChemInform doi:10.1002/chin.199121064
- Sanchez-Cano et al. (1991). Synthesis of l-cysteic acid by indirect electrooxidation and an example of paired synthesis: L-cysteic and l-cysteine from l-cystine. Tetrahedron doi:10.1016/s0040-4020(01)87076-9
- Williams et al. (2011). Negative Ion Fragmentation of Cysteic Acid Containing Peptides: Cysteic Acid as a Fixed Negative Charge. Journal of the American Society for Mass Spectrometry doi:10.1007/s13361-011-0165-1
References were compiled automatically from Crossref and every DOI was verified to exist. AMI Scientific is not affiliated with the authors or the publishers.
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