R-2-Aminododecanoic acid is a long-chain aliphatic amino acid derivative classified as a primary amino carboxylic acid, featuring a dodecyl (C12) hydrocarbon side chain attached at the 2-position relative to the carboxyl group. The molecule contains a free amino group and a free carboxyl group, and its "R-2" designation indicates the presence of a defined stereocenter at the 2-position with the corresponding R configuration. In chemical research and peptide-related workflows, it can be used as a hydrophobic building block or substrate for preparing longer-chain amino acid derivatives and for studying how nonpolar side-chain length influences structure, solubility, and incorporation patterns in synthetic peptide analogues.
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