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% , Isoquinoline-5-carboxylic acid 98%, ISOQUINOLINE-5-CARBOXYLIC ACID, 95%. Offered by: Combi-blocks, GLPBio, Thermo Scientific (Alfa Aesar), Ambeed, Sigma-Aldrich. Available pack sizes: 1g, 25g, 5g, 250mg, 10g, 50g.