CAS 142890-12-8 appears in our catalog under these names: Methyl 2-(1H-pyrazol-1-yl)acetate, 98%, Methyl 2-(1H-pyrazol-1-yl)acetate, 95%, 95%, Methyl 2-(1H-pyrazol-1-yl)acetate, 95%. Offered by: Combi-blocks, Chemat, Fluorochem. Available pack sizes: 5g, 1g, 10g, 250mg, 25g.