CAS 1871855-31-0 appears in our catalog under these names: Prop-2-yn-1-yl 4-hydroxythiophene-2-carboxylate, 97%, Prop-2-yn-1-yl 4-hydroxythiophene-2-carboxylate, 97%, 97%. Offered by: Chemat Brand, Chemat, Fluorochem. Available pack sizes: on request, 100mg, 250mg.