CAS 28836-03-5 appears in our catalog under these names: ANS ammonium, 8-Anilinonaphthalene-1-sulfoni , ANS-NH4 (=Ammonium 8-Anilino-1-naphthalenesulfonate) [Hydrophobic fluorescent probe], >95.0%(HPLC)(T), ANS-NH4 95%, 8-ANILINONAPHTHALENE-1-SULFONIC ACID &. Offered by: GLPBio, Thermo Scientific (Alfa Aesar), TCI, Ambeed, Sigma-Aldrich. Available pack sizes: 25g, 500g, 5g, 100g, 1g, 10g, 50g, 250g.