4-amino-2,4,5-trideoxy-L-erythro-pentonic acid InChI=1/C5H11NO3/c1-3(6)4(7)2-5(8)9/h3-4,7H,2,6H2,1H3,(H,8,9)/t3-,4+/m0/s L-erythro-pentonic acid, 4-amino-2,4,5-trideoxy-