英文别名D-Gluconic acid, 4-o-.beta.-D-galactopyranosyl-, .delta.-lactone; Lactobionic acid, .delta.-lactone; 4-O-beta-D-Galactopyranosyl-D-gluconic acid delta-lactone; delta-Lactonolactone; Lactobiono-1,5-lactone; Lactobiono-delta-lactone; (3R,4R,5S,6R)-3,4-dihydroxy-6-(hydroxymethyl)-5-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-one; Piarle; laevolac; lactulose keto form; Cholac; Liforos; Enulose; Caloryl; cephulac; MLS-50; 1,5-lactobionolactone; Lagnos; Duphalac 
