CAS 163169-15-1 appears in our catalog under these names: (S)-4-tert-Butyl-2-[(sp)-2-(diphenylphosphino)ferrocenyl]-2-oxazoline, 95%, (S，Sp)–tBu–Phosferrox, (S)-4-Tert-Butyl-2-[(SP)-2-(Diphenylphosphino)Ferrocenyl]-2-Oxazoline, 97%, 97%, (S,Sp)-tBu-Phosferrox, 97%, (2Sp)-1-[(4S)-4-(1,1-Dimethylethyl)-4,5-dihydro-2-oxazolyl]-2-(diphenylphosphino)ferrocene, 98% (99%ee). Offered by: Combi-blocks, GLPBio, Chemat, Fluorochem, Ambeed. Available pack sizes: 250mg, 1g, 100mg, 50mg, 5g, 25g.