.beta.-erythro-Hydroxy-DL-aspartate 6532-76-9 Aspartic acid, 3-hydroxy-, DL-erythro- DL-Aspartic acid, 3-hydroxy-, erythro- DL-erythro-.beta.-Hydroxyaspartic acid NSC119129 erythro-.beta.-Hydroxy-DL-aspartic acid erythro-3-Hydroxy-DL-aspartate