5336-08-3 D-Ribono-1,4-lactone D-Ribono-gamma-lactone D-Ribonolactone (VAN) D-Ribopentono-1,4-lactone EINECS 226-256-5 NSC 1031 Ribonic acid, gamma-lactone, D- (8CI) Ribono-gamma-lactone gamma-Lactone of ribonic acid