CAS 77-91-8 appears in our catalog under these names: Choline dihydrogen citrate, 97%, Choline Dihydrogen Citrate, Choline Dihydrogen Citrate, >95% (HPLC), Choline Dihydrogen Citrate, >99.0%(T), Choline dihydrogen citrate, 98.00%. Offered by: Combi-blocks, Chemat Brand, TRC, TCI, Chemat. Available pack sizes: 500g, 5g, 1kg, 25g, 100g, on request, 1000g, 500MG.