CAS 1019-52-9 appears in our catalog under these names: 3,5-Dinitro-4-hydroxybenzoic Acid, >95% (HPLC), 4-Hydroxy-3,5-dinitrobenzoic acid, 98+% , 3,5-Dinitro-4-hydroxybenzoic acid, 4-Hydroxy-3,5-dinitrobenzoic Acid, 96%, 96%, 3,5-Dinitro-4-hydroxybenzoic acid, min. 95 %, 1 g. Offered by: TRC, Thermo Scientific (Alfa Aesar), Biosynth, Chemat, Roth. Available pack sizes: 100mg, 1g, 500mg, 5g, 2000mg, 1000mg, 5000mg, 10000mg.