InChI=1/C19H15N3/c20-13-6-8-15-17(10-13)22-18-11-14(21)7-9-16(18)19(15)12-4-2-1-3-5-12/h1-11H,20-21H2/p+1/fC19H16N3/h22H/q+1 A3E717FCE7176DC8