CAS 18588-61-9 appears in our catalog under these names: 2,4-Diaminopyrimidine-5-carboxylic acid, 98%, 2,4-Diaminopyrimidine-5-carboxylic acid, 97%, 97%, 2,4-Diaminopyrimidine-5-carboxylic acid, 97%. Offered by: AmBeed, Chemat, Fluorochem. Available pack sizes: 5g, 100mg, 250mg, 1g.