CAS 321883-23-2 appears in our catalog under these names: 18：0,18：1 PS sodium, 1-Stearoyl-2-oleoyl-sn-glycero-3-phosphoserine Sodium Salt, 18:0-18:1 PS, 18:0,18:1 PS (sodium), 99.62%, 18:0,18:1 PS (sodium) (Standard). Offered by: GLPBio, Chemat, Sigma-Aldrich, MedChemExpress. Available pack sizes: 10mg, 25mg, 5mg, 50mg, 1mg, 50 mg, 10 mg, 25 mg.