CAS 2521-84-8 appears in our catalog under these names: H–Cyclopentyl–Gly–OH, H-L-Cpg-OH, L-Cyclopentylglycine, 95% , H-Cyclopentyl-Gly-OH 97%, H-Cyclopentyl-Gly-OH, 97%, 97%. Offered by: GLPBio, Iris Biotech, Thermo Scientific (Alfa Aesar), Ambeed, Chemat. Available pack sizes: 10g, 25g, 5g, 1g, 250mg, 100mg, 100g, 5 g.