CAS 55663-99-5 appears in our catalog under these names: Fast blue rr salt, 95%, Fast Blue RR Salt, Azoic Diazo Component 24 (Salt) [for Biochemical Research], >95.0%(T), Fast Blue RR Salt, 98%, 98%, Fast Blue RR Salt, 95.30%. Offered by: Combi-blocks, GLPBio, TCI, Chemat, MedChemExpress. Available pack sizes: 25g, 5g, 1g, 100mg, 250mg, 1 g.