methyl alpha-D-glucopyranosyl-1-2-alpha-D-glucopyranosyl-1-3-alpha-D-glucopyranosyl-1-3-mannopyranoside
methyl alpha-d-glucopyranosyl-1-2-alpha-d-glucopyranosyl-1-3-alpha-d-glucopyranosyl-1-3-mannopyranoside