CAS 4843-98-5 appears in our catalog under these names: 4–Hydroxypyrazole, 1H-Pyrazol-4-ol, 1H-Pyrazol-4-ol 97%, 4-Hydroxypyrazole, 97%, 97%, 1H-Pyrazol-4-ol, 95%. Offered by: GLPBio, Biosynth, Ambeed, Chemat, Fluorochem. Available pack sizes: 1g, 250mg, 5g, 10g, 100mg, 25g, 100g.