CAS 59403-53-1 appears in our catalog under these names: SPPC, 18:0-16:0 PC, SPPC 95%, 1-stearoyl-2-palmitoyl-sn-glycero-3-phosphocholine, 95%, 95%, SPPC, 99.96%. Offered by: GLPBio, Biosynth, Ambeed, Sigma-Aldrich, Chemat. Available pack sizes: 10mg, 5mg, 500mg, 250mg, 25mg, 100mg, 200MG, 10 mg.