Synonyms:
d-glycero-d-gulo-heptono-.delta.-lactone ; (3r,4r,5r,6r)-6-[(1r)-1,2-dihydroxyethyl]-3,4,5-trihydroxy-oxan-2-one ; a-d-glucoheptoniclactone ; (3r,4r,5r,6r)-6-[(1r)-1,2-dihydroxyethyl]-3,4,5-trihydroxyoxan-2-one ; d-glycero-d-gluco-heptonic acid 1,5-lactone ; (3r,4r,5r,6r)-6-[(1r)-1,2-dihydroxyethyl]-3,4,5-trihydroxy-tetrahydropyran-2-one