4-Azido-7-phenylpyrazolo(1,5-a)-1,3,5-triazine 4-Azido-7-phenylpyrazolo-(1,5a)-1,3,5-triazine 55824-91-4 APPT Pyrazolo(1,5-a)-1,3,5-triazine, 4-azido-7-phenyl-