CAS 88319-43-1 appears in our catalog under these names: H–β–tBu–D–Ala–OH, H-D-NptGly-OH, H-D-4-Me-Leu-OH 97%, D-tert-Butylalanine, 95%+, 95%+, 3-tert-Butyl-D-alanine, 97%. Offered by: GLPBio, Iris Biotech, Ambeed, Chemat, Fluorochem. Available pack sizes: 1g, 5g, 100mg, 250mg, 500mg.