CAS 58543-16-1 appears in our catalog under these names: Rebaudioside A, Rebaudioside A, >95% (HPLC), Rebaudioside A , Rebaudioside A/ 99.94% (existing batch purity), Rebaudioside A, 98.00%. Offered by: Dr. Ehrenstorfer, TRC, GLPBio, TargetMol, Chemat. Available pack sizes: 25mg, 100g, 10g, 5g, 20mg, 50mg, 100mg, 200mg.