Medchemexpress, HY-33212 100mg D-N-Acetylgalactosamine CAS:1811-31-0 D-N-Acetylgalactosamine is an endogenous metabolite. Purity:>98% Medchemexpress has over 10000 novel life-science reagents, reference compounds, APIs and natural compounds for laboratory and scientific use. Other quantity can also be offered.