3.2.1.145 28.6 - beta-(1-3)-galactobiose pH 4.0, 37°C 666634 3.2.1.145 32.5 - beta-(1-3)-D-galactotriose pH 4.0, 37°C 666634 3.2.1.145 123 - p-nitrophenyl-beta-galactoside pH 4.0, 37°C 666634