Optimization of Thermal Stability Measurements for the Identification of Oligonucleotide APIs

All starting materials, including APIs, must undergo analytical identity (ID) determination before pharmaceutical manufacturing to ensure drug safety. Oligonucleotides pose challenges for ID due to sequence specificity. Melting temperatures (Tm) combined with intact mass measurements offer a solution using UV-based spectrometry for precise Tm determination at Vetter Pharma.