CAS 27810-64-6 appears in our catalog under these names: Isoquinoline-5-carboxylic acid, 98%, Isoquinoline–5–carboxylic acid, Isoquinoline-5-carboxylic acid, 96% , 5-Isoquinolinecarboxylic acid, 98%, 98%, 5-Isoquinolinecarboxylic acid, 98%. Offered by: Combi-blocks, GLPBio, Thermo Scientific (Alfa Aesar), Chemat, Ambeed. Available pack sizes: 1g, 25g, 5g, 250mg, 50g, 10g.