AAPPTec, LLC is an American peptide synthesis company located in Louisville, KY, providing a complete line of peptide products. The company offers products ranging from automated peptide synthesizers to peptide-related laboratory equipment and high-quality reagents. Its solutions support chemists in preparing and analyzing peptides for research at semi-preparative and preparative scales. The company also provides technical information and guidance for peptide synthesis and purification. Custom peptide synthesis services include peptides with various modifications and purity levels. Products and services are used in research areas such as proteomics, antibody production, and drug development..