CAS 920-38-7 appears in our catalog under these names: Propiolic Acid Sodium Salt (90%), Propiolic acid sodium, Sodium propiolate 98%, Sodium propiolate, 98%, 98%, Propiolic acid sodium, min. 95 %, 500 mg. Offered by: TRC, Biosynth, Ambeed, Chemat, Roth. Available pack sizes: 1g, 500mg, 5g, 1000mg, 2000mg, 5000mg, 10000mg, 100mg.