CAS 268220-92-4 appears in our catalog under these names: Stereoisomer of 1,1′-bis[(2R,4R)-2,4-dipropyl-1-phosphetanyl]ferrocene, 97%, 97%, 1,1'-Bis[(2R,4R)-2,4-dipropyl-1-phosphetanyl]ferrocene stereoisomer, 97%. Offered by: Chemat, Ambeed. Available pack sizes: 50mg, 100mg, 250mg, 1g, 5g.