CAS 16870-43-2 appears in our catalog under these names: L-Tyrosine hydrochloride, 95%, L-Tyrosine Hydrochloride, (S)–2–Amino–3–(4–hydroxyphenyl)propanoic acid hydrochloride, L-Tyrosine Hydrochloride, 98%, 98%, (S)-2-Amino-3-(4-hydroxyphenyl)propanoic acid hydrochloride, 95%. Offered by: Combi-blocks, TRC, GLPBio, Biosynth, Chemat. Available pack sizes: 1g, 25g, 5g, 100g, 10g, 100mg, 250mg.