Acetyl-L-glutamic acid is an acetylated derivative of the proteinogenic amino acid L-glutamic acid, featuring a side chain with a terminal carboxylic acid typical of glutamate. The molecule contains an amino group and a carboxyl group on the glutamate backbone, with the amino functionality converted to an acetamide (acetylated) while retaining the side-chain carboxylic acid for acid-base behavior and potential salt formation. In synthetic and analytical workflows, this protected/derivatized glutamate analogue is used as a precursor or building block to control chemoselectivity of the amino functionality during peptide-related chemistry and to support characterization or labeling strategies involving glutamate-like side-chain functionality.
CAT No: CP00704
CAS No:1188-37-0
Synonyms/Alias:N-Acetyl-L-glutamicacid;1188-37-0;acetylglutamicacid;N-acetyl-L-glutamate;N-acetylglutamicacid;N-Acetylglutamate;Acetyl-L-glutamicacid;L-N-Acetylglutamicacid;(2S)-2-acetamidopentanedioicacid;L-Glutamicacid,N-acetyl-;N-Acetyl-L-glutamicacid,Ac-Glu-OH;Glutamicacid,N-acetyl-(6CI,7CI);(2S)-2-acetamidoglutaricacid;CHEBI:17533;RFMMMVDNIPUKGG-YFKPBYRVSA-N;EINECS214-708-4;Ac-Glu-OH;SBB058021;Glutamicacid,N-acetyl-,L-(8CI);NCGC00166080-01;DSSTox_CID_26534;DSSTox_RID_81698;DSSTox_GSID_46534;NLG;N-Ac-Glu-OH
Acetyl-L-glutamic acid is an L-configured glutamic acid derivative bearing an N-acetyl group, which changes the amino acid's reactivity profile relative to the free amino acid while retaining the glutamate side-chain carboxyl functionality. This N-acetylation makes it a common, well-defined building block for preparing glutamate-containing intermediates and for analytical workflows where controlled derivatization is required. In research and industrial settings, its protected amino functionality and acidic side chain support downstream coupling chemistry and standardized reagent preparation.
1. Pharmaceutical Intermediate Synthesis
Acetyl-L-glutamic acid is frequently used as a glutamate-derived starting material in pharmaceutical intermediate development, particularly when the N-acetyl group is retained through early synthetic stages to control chemoselectivity. Process and medicinal chemistry teams value the defined, mono-protected amino functionality alongside the side-chain carboxyl group for building structured fragments that later undergo activation, coupling, or further functional group interconversions. Its L-stereochemical definition also supports consistent stereochemical outcomes in downstream chiral synthesis sequences used to generate glutamate-based motifs and related heterobuilding blocks.
2. Peptide Fragment Building
Acetyl-L-glutamic acid is applied in peptide and peptidomimetic fragment construction workflows where a glutamate unit with an N-acetyl-protected amino group is advantageous for controlling reactivity during segment assembly. Researchers developing glutamate-containing sequences or constrained peptide-like structures often use this derivative to introduce a defined glutamate element without requiring immediate re-protection of the amino functionality. The preserved side-chain carboxyl group provides a practical handle for subsequent activation or derivatization, enabling incorporation into larger coupling strategies used in custom peptide synthesis and structure-activity relationship studies.
3. Analytical Derivatization Standard
Acetyl-L-glutamic acid is also used as a defined reference material and derivatization component in analytical chemistry workflows that require glutamate-related chemical standards with a stabilized amino functionality. LC-MS and related quantitative methods often benefit from using N-acetylated glutamate species to improve reproducibility of derivatization steps, reduce variability associated with free amino groups, and generate consistent analyte forms for method development. Analytical laboratories and method developers commonly select this derivative when building calibration sets, verifying chromatographic behavior, or preparing internal standards that reflect a specific derivatized chemical identity rather than the free amino acid.
4. Biomaterials And Surface Chemistry
Acetyl-L-glutamic acid finds use in biomaterials and surface functionalization development where glutamate-derived acidic functionality is leveraged for material compatibility and controlled chemical modification. Materials scientists may incorporate this glutamate derivative into coupling schemes that attach glutamate-like motifs to polymers, linkers, or surfaces, using the side-chain carboxyl group as a reactive site while the N-acetyl group helps define the amino functionality during material processing. This positioning supports downstream fabrication of functionalized polymer conjugates and scaffold materials used in chemical biology and materials research contexts.
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