CAS 68131-04-4 appears in our catalog under these names: Sodium bicyclo(2.2.1)hept-5-ene-2,3-dicarboxylate, 95+%, Humic acid sodium salt, tech. 50-60% (as humic acid) , Humic acid, sodium salt, 45-70%, technical, (as humic acid), Humic acids, sodium salts, 97%, 97%, Humic acid (sodium),50-60% (as humic acid). Offered by: AmBeed, Thermo Scientific (Alfa Aesar), Thermo Scientific (Acros), Chemat, MedChemExpress. Available pack sizes: 25g, 100g, 500g, 1KG, 5g, 500 g, 10kg, 25kg.