CAS 11099-03-9 appears in our catalog under these names: Nigrosin, alcohol soluble , Solvent Black 5, NIGROSIN, ALCOHOL SOLUBLE, Nigrosin (C.I. 50415), soluble in alcohol, extra pure, 5 g, glass, Nigrosin (C.I. 50415), soluble in alcohol, extra pure, 25 g, glass. Offered by: Thermo Scientific (Alfa Aesar), TCI, Sigma-Aldrich, Chemat, MedChemExpress. Available pack sizes: 25g, 100g, 1kg, 250g, 500g, 2.5kg, Get quote, 5g.