CAS 5619-08-9 appears in our catalog under these names: DL-tyrosine ethyl ester hydrochloride, 96%, (S)-Ethyl 2-amino-3-(4-hydroxyphenyl)propanoate hydrochloride, ≥97%, ethyl 2-amino-3-(4-hydroxyphenyl)propanoate hydrochloride, 97%. Offered by: Combi-blocks, Chemat, Fluorochem. Available pack sizes: 1g, 25g, 5g, 100g, 10g.