CAS 1913-12-8 appears in our catalog under these names: Boc-asp(otbu)-oh dcha, 95%, Boc–Asp(OtBu)–OH·DCHA, Boc-L-Asp(OtBu)-OH*DCHA, Boc-Asp(OtBu)-OH DCHA, 98%, Boc-Asp(OtBu)-OH middot dcha 25 g. Offered by: Combi-blocks, GLPBio, Iris Biotech, Chemat, Sigma-Aldrich. Available pack sizes: 1g, 25g, 5g, 100g, 25 G.