4-Nitrophenyl maltopentaoside 66068-38-0 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)- p-Nitrophenyl alpha-maltopentaoside