CAS 900863-27-6 appears in our catalog under these names: 3-Amino-1h-pyrazolo[4,3-c]pyridin-4-ol, 95%, 3–Amino–1H–pyrazolo(4，3–c)pyridin–4(5H)–one, 3-Amino-1H-pyrazolo[4,3-c]pyridin-4(5H)-one 95%, 3-AMINO-1H-PYRAZOLO[4,3-C]PYRIDIN-4-OL, 95%, 95%. Offered by: Combi-blocks, GLPBio, Ambeed, Chemat. Available pack sizes: 100mg, 1g, 250mg, 5g, 10g.