4-hydroxypyridine-d5

Benzenediazonium, 3-chloro-, tetrafluoroborate(1-)

diazonium salt for synthesis

4-Hydroxypyridine-d5 is a deuterated research reagent where all five hydrogen atoms on the pyridine ring and hydroxyl group are replaced with deuterium. It is commonly used as an internal standard in analytical chemistry and metabolic studies due to its isotopic labeling.