poly[(1->4)-beta-D-glucosyl]-(1->4)-D-glucono-1,5-lactone
poly[(1->4)-beta-d-glucosyl]-(1->4)-d-glucono-1,5-lactone
A β-<small>D</small>-glucan consisting of a poly[(1→4)-β-<small>D</small>-glucosyl] chain attached at position 4 of <small>D</small>-glucono-1,5-lactone via a glycosidic linkage.