CAS 203645-64-1 appears in our catalog under these names: Choline-d13 Bromide (N,N,N-trimethyl-d9, 1,1,2,2-d4), 99 atom % D, min 98% Chemical Purity, Choline-d13 (bromide), 98.0%. Offered by: CDN, MedChemExpress. Available pack sizes: 0,25g, 0,1g, 5 mg.