CAS 51077-16-8 appears in our catalog under these names: Boc-L-thiazolidine-4-carboxylic acid, 97%, Boc–L–thiazolidine–4–carboxylic acid, Boc-L-Thz-OH, N-Boc-(R)-(-)-thiazolidine-4-carboxylic acid, 98% , Boc-Thz-OH 98%. Offered by: Combi-blocks, GLPBio, Iris Biotech, Thermo Scientific (Alfa Aesar), Ambeed. Available pack sizes: 1g, 25g, 5g, 100g, 500g, 10g.