CAS 145817-20-5 appears in our catalog under these names: (R)–di–tert–butyl 2–((S)–4–amino–5–tert–butoxy–5–oxopentanamido)pentanedioate, (R)-Di-tert-butyl 2-((S)-4-amino-5-tert-butoxy-5-oxopentanamido)pentanedioate, (R)-di-tert-butyl 2-((S)-4-amino-5-tert-butoxy-5-oxopentanamido)pentanedioate, 95%, (R)-di-tert-butyl 2-((S)-4-amino-5-tert-butoxy-5-oxopentanamido)pentanedioate, 95%, 95%. Offered by: GLPBio, Biosynth, Roth, Fluorochem, Chemat. Available pack sizes: 100mg, 1g, 250mg, 50mg, 1000mg, 500mg.