5-Chloro-3-nitropyrazolo[1,5-a]pyrimidine

5-Chloro-3-nitropyrazolo[1,5-a]pyrimidine (CAS 1363380-51-1) is a pharmaceutical-grade intermediate offered by Hunan HuaTeng Pharmaceutical, a global supplier of pharmaceutical intermediates, for R&D, evaluation, pilot and commercial use, supplied with a supportive technical package. It is used as an intermediate for larotrectinib (Vitrakvi), a Trk-kinase-inhibitor cancer drug, and is sold into North America, Eastern Europe, Australasia and Asia.