CAS 51077-01-1 appears in our catalog under these names: 1-((4-Methylphenyl)sulfonyl)proline, 1-(Toluene-4-sulfonyl)-pyrrolidine-2-carboxylic acid, 98%, Tos-pro-oh, 98%, Tos–Pro–OH, Tos-Pro-OH 97%. Offered by: TRC, Combi-blocks, GLPBio, Ambeed, MedChemExpress. Available pack sizes: 2,5g, 250mg, 500mg, 5g, 25g, 1g, 100g, 5 g.