Pyrazolo [1,5-a] pyrimidin-5 (4h) - one
Name: Pyrazolo [1,5-a] pyrimidin-5 (4h)-one
CAS: 29274-22-4
Appearance: White to yellowish powder
Purity: No less than 98%
Use: Intermediates of Larotrectinib(loxo-101)