2-ethylaminoacetic acid 2-ethylaminoethanoic acid NSC244825 CHEBI:15620 465216_ALDRICH AIDS-018624 AIDS018624 C11735 N-Ethylglycine 2-ethylazaniumylacetate 2-ethylammonioacetate 2-ethylazaniumylethanoate 627-01-0 ZINC01532340