L-2-Aminodecanoic acid(S-form) is a free, proteinogenic amino acid analogue in which the amino group is attached to the carbon adjacent to the carboxyl group of a decanoic (ten-carbon) backbone, giving a long aliphatic side chain. The molecule contains a primary amino functional group and a carboxylic acid functional group, and the (S)-designation indicates a defined stereochemical configuration at the α-carbon while the side chain remains unmodified and hydrophobic. It is used as a substrate or building block for peptide and amino-acid-derivative synthesis, as well as for structure-property studies where the extended alkyl side chain and defined stereochemistry are relevant to conformational and physicochemical behavior.
L-2-Aminodecanoic acid(S-form) is a chiral, aliphatic amino acid with a ten-carbon backbone, featuring a stereogenic center at the alpha position and a primary amino group alongside a carboxylic acid. The (S)-configuration at the amino acid chiral center governs stereochemical outcomes in peptide coupling and downstream derivatization, while the extended methylene-rich chain provides hydrophobic character and membrane-mimetic behavior in molecular assemblies. The unprotected amino and carboxylic acid functionalities can be selectively masked using standard amino protection and acid esterification strategies to enable controlled peptide bond formation. The compound's linear side-chain architecture also supports conversion into functionalized derivatives for use as a chiral intermediate in synthetic organic chemistry and as an amino acid building block for structured aliphatic peptides and related materials.
1. Peptide Synthesis
L-2-Aminodecanoic acid(S-form) is applied in peptide synthesis workflows where an S-configured, long-chain amino acid residue is required for building hydrophobic segments in peptide scaffolds. The alpha-amino and alpha-carboxyl groups participate in amide bond formation after appropriate N-protection and C-terminal activation, enabling peptide coupling chemistry compatible with common protected amino acid strategies. The extended decyl-like chain can be incorporated to tune conformational preferences, aggregation propensity, and solubility profiles of peptide analogs. Downstream, the residue can be used to prepare aliphatic peptide fragments, peptidomimetic backbones, and sequence-defined constructs for biochemical research and materials-oriented peptide engineering.
2. Side-Chain Functionalization
L-2-Aminodecanoic acid(S-form) supports side-chain and backbone derivatization strategies that leverage its long aliphatic chain for chemical modification and property tuning. The amino acid core enables selective protection of the amine while the carboxyl group can be converted to esters, amides, or activated intermediates for subsequent transformations. The hydrophobic chain can be functionalized into reactive handles such as alkyl halides, azide-bearing motifs, or tethered electrophiles after conversion to suitable intermediates, facilitating conjugation chemistry. Resulting derivatives can serve as chiral amino acid intermediates for constructing amphiphilic ligands, surface-active molecules, and hydrophobic linkers used in chemical biology and industrial fine chemical synthesis.
3. Chiral Building Block Development
L-2-Aminodecanoic acid(S-form) is used as a chiral amino acid intermediate for stereocontrolled synthesis of downstream chiral molecules and structured intermediates. The (S)-stereocenter provides a defined stereochemical element that can be retained through protected amino acid chemistry, including N-protection and C-terminal activation to enable selective coupling without racemization. The linear aliphatic framework can be carried into heteroatom-containing derivatives, cyclic scaffolds, or functionalized chiral auxiliaries where stereochemical integrity is required for reproducible reactivity. The compound therefore functions as a practical feedstock for chiral synthesis routes in synthetic organic chemistry and process chemistry intermediate preparation.
4. Chemical Biology Conjugation
L-2-Aminodecanoic acid(S-form) is relevant to chemical biology and biomolecule modification efforts where hydrophobic amino acid residues are used to modulate binding, uptake, or localization of conjugates. The amino acid's functional groups can be orthogonally protected to allow controlled installation of conjugation-ready moieties, including activated ester formation from the carboxyl group and N-functionalization after selective deprotection. The hydrophobic chain contributes to membrane affinity and can influence the behavior of labeled peptides, affinity tags, or linker regions in probes. Downstream applications include preparation of conjugation reagents, linker-bearing peptide fragments, and analytical standards used to evaluate labeling efficiency and structural integrity in research settings.
5. Pharmaceutical Manufacturing Intermediates
L-2-Aminodecanoic acid(S-form) can be incorporated into industrial manufacturing routes for producing protected amino acid derivatives and aliphatic peptide intermediates used in specialty chemical supply chains. The amino acid's bifunctional nature supports scalable protection-group strategies, such as N-protection for controlled peptide coupling and carboxyl activation for downstream formation of amide or ester linkages. The long-chain, hydrophobic character can be leveraged to manufacture sequence-defined intermediates that influence solubility and processing behavior of peptide-based ingredients and process intermediates. The stereodefined (S)-center also aligns with industrial requirements for consistent stereochemical outcomes in chiral intermediate preparation and subsequent fine chemical synthesis.
6. Polymer And Material Modification
L-2-Aminodecanoic acid(S-form) is suitable for functional material and polymer modification programs that use amino acid-derived monomers, linkers, or grafting units to introduce hydrophobic segments. The protected amino acid form can be converted into reactive derivatives that participate in polymer chemistry, including amide-forming linkages with carboxyl- or amine-functional polymers, or incorporation into peptide-based materials. The methylene-rich chain can enhance hydrophobic domain formation, affecting film formation, surface properties, and compatibility with nonpolar phases. Downstream, the compound enables preparation of amino acid-functional polymers, amphiphilic coatings, and structured material intermediates that connect amino acid chemistry to applied industrial manufacturing needs.
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