CAS 5704-04-1 appears in our catalog under these names: Tricine, 98+% , Tricine, 0.5M buffer soln., pH , Tricine-buffered saline (5X), , Tricine, Electrophoresis Grade, 99% . Offered by: Thermo Scientific (Alfa Aesar). Available pack sizes: 25g, 100g, 500g, 100ml, 250ml, 500ml.