CAS 107-43-7 appears in our catalog under these names: Betaine, 5M Solution, Molecular Biology Grade, Ultrapure, Th, Betaine, anhydrous, 98% . Offered by: Thermo Scientific (Alfa Aesar). Available pack sizes: 10ml, 100ml, 1.5ml , *5x1.5ml , 2500g, 100g, 500g.