CAS 103340-16-5 appears in our catalog under these names: Boc–Phe–Gly–Gly–OH, Boc-Phe-Gly-Gly-OH, (S)-6-Benzyl-2,2-dimethyl-4,7,10-trioxo-3-oxa-5,8,11-triazatridecan-13-oic acid, 97%, 97%, Boc-Phe-Gly-Gly-OH, 97%. Offered by: GLPBio, Biosynth, Chemat, Fluorochem. Available pack sizes: 1g, 250mg, 0,05g, 0,1g, 0,25g, 0,5g, 100mg, 5g.