Inquiry Product - 3-O--D-glucopyranosyl(1→4)-[-L-rhaMnopyranosyl(1→2)]--L-arabinopyranosyl23-hydroxyllup-20(29)-en-28-oicacid–28-O-rhaMnopyranosyl(1→4)glucopyranosyl(1→6)glucopyranoside(Standard Reference Material)