The molecule is a D-galactosamine 1-phosphate in which the anomeric centre has alpha configuration. It is a tautomer of an alpha-D-galactosamine 1-phosphate zwitterion.
[(2R,3R,4R,5R,6R)-3-amino-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl] dihydrogen phosphate