2-(trimethylsilyl)ethyl 4-O-(3-O-(beta-D-galactopyranosyl)-alpha-D-galactopyranosyl)-beta-D-galactopyranoside
2-(trimethylsilyl)ethyl 4-o-(3-o-(beta-d-galactopyranosyl)-alpha-d-galactopyranosyl)-beta-d-galactopyranoside