22138-53-0 4-phospho-L-aspartate Aspartic acid, 4-monoanhydride with phosphoric acid, L- Aspartic acid, 4-monoanhydride with phosphoric acid, L- (8CI) L-4-aspartyl phosphate L-Aspartic acid, 4-monoanhydride with phosphoric acid L-Aspartic acid, 4-monoanhydride with phosphoric acid (9CI) L-Aspartyl beta-phosphate L-aspartyl-4-P L-homoserine, 4-oxo-O-phosphono- Phosphoric acid, 4-monoanhydride with aspartic acid, L- beta-Aspartyl phosphate beta-L-Aspartyl phosphate