tert-Butyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate 97% 1256359-17-7 C₁₄H₂₃BN₂O₄ 294.15 g./mol ฿1,820.00 View