The Prelude^TM is the newest addition to Protein Technologies, Inc.'s (PTI's) peptide synthesizer family. Designed for syntheses ranging from the 5 - 350 umol scale, the Prelude^TM has 6 parallel reaction vessels, 8 bottle positions and 27 amino acid positions to provide the flexibility and throughput needed for today's peptide syntheses. In addition to its standard features, the Prelude^TM also offers Single-Shot^TM deliveries, E-mail Notification and a Safe Response for interrupted syntheses. With its special features, the Prelude^TM is the future of peptide synthesis, today.