Product Name:(S)-1-((R)-1-Acryloylpiperidin-3-yl)-4-amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidine 1-oxide (Ibrutinib Impurity)
IUPAC Name:(1R)-4-amino-3-(4-phenoxyphenyl)-1-[(3R)-1-(prop-2-enoyl)piperidin-3-yl]-1H-pyrazolo[3,4-d]pyrimidin-1-ium-1-olate