.beta.-D-Galactopyranoside, 2-nitrophenyl 2-Nitrophenyl .beta.-D-galactopyranoside 369-07-3 Galactopyranoside, o-nitrophenyl, .beta.-D- NSC83631 o-Nitrophenyl .beta.-D-galactopyranoside o-Nitrophenyl .beta.-D-galactoside o-Nitrophenyl .beta.-galactoside