5001-51-4 96-82-2 Calcium 4-O-beta-D-galactopyranosyl-D-gluconate (1:2) Calcium bis(4-O-(beta-D-galactosyl)-D-gluconate) Calcium lactobionate D-Gluconic acid, 4-O-beta-D-galactopyranosyl-, calcium salt (2:1) EINECS 225-668-2 Lactobionic acid, calcium salt (2:1)