4-Methoxyphenyl 3-O-Benzyl-4,6-O-benzylidene-2-deoxy-2-phthalimido-beta-D-glucopyranoside (CAS# 129575-88-8) is a carbohydrate that is readily polymerizable and useful in the study of N-glycans. 4-Methoxyphenyl 3-O-Benzyl-4,6-O-benzylidene-2-deoxy-2-phthalimido-beta-D-glucopyranoside undergoes reductive-ring opening by methanesulfonic acid.