CAS 1263-89-4 appears in our catalog under these names: Paromomycin sulfate, min. 675 I.U./mg, 500 g, Paromomycin sulfate, 95%, Paromomycin Sulfate, Paromomycin Sulfate, >95% (HPLC), Paromomycin Sulfate/ 99.86% (existing batch purity). Offered by: Roth, Combi-blocks, Chemat Brand, TRC, Dr. Ehrenstorfer. Available pack sizes: 500g, 1g, 25g, 5g, on request, 100g, 100mg, 500mg.