88273-26-1 D-Alaninamide, N-(2,3-dihydroxy-1-oxopropyl)glycyl-O-(aminocarbonyl)-N-methyl-L-seryl-N-(2-oxo-1-sulfo-3-azetidinyl)-, monosodium salt, (1(R),3(S))- SQ 28332 SQ-28,332