3,4-Di-O-benzyl-L-rhamnal is a high purity Glycosylation Oligosaccharide with a CAS No. 117249-17-9 that is synthesized by Click modification and methylation. It can be used as a raw material in the synthesis of complex carbohydrate. 3,4-Di-O-benzyl-L-rhamnal is water soluble and has an excellent stability in acidic conditions.