4-Nitrophenyl maltoheptaoside 74173-31-2 EINECS 277-741-3 alpha-D-Glucopyranoside, 4-nitrophenyl O-alpha-D-glucopyranosyl-(1.4)-O-alpha-D-glucopyranosyl-(1.4)-O-alpha-D-glucopyranosyl-(1.4)-O-alpha-D-glucopyranosyl-(1.4)-O-alpha-D-glucopyranosyl-(1.4)-O-alpha-D-glucopyranosyl-(1.4)-