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(αS,4S,5R)-α-Amino-3-chloro-4,5-dihydro-4-hydroxy-5-isoxazoleacetic acid

Chemical FDA Substance Registry (openFDA)
Chemical Identification
CAS Number54549-02-9
INCI Name(2S)-2-amino-2-[(4S,5R)-3-chloro-4-hydroxy-4,5-dihydro-1,2-oxazol-5-yl]acetic acid
PubChem CID 162751
Molecular FormulaC5H7ClN2O4
InChIKeyInChI=1S/C5H7ClN2O4/c6-4-2(
SMILES[C@@H]1([C@H](ON=C1Cl)[C@@H](C(=O)O)N)O
Known Aliases (5)
Common Name
NSC-176324 U-43795 U43795
Scientific Name
5-Isoxazoleacetic acid, α-amino-3-chloro-4,5-dihydro-4-hydroxy-, (αS,4S,5R)- α-Amino-3-chloro-4,5-dihydro-4-hydroxy-5-isoxazoleacetic acid, (αS,4S,5R)-
Data Sources (1)
Source Source ID Name in Source Properties
FDA Substance Registry (openFDA) 7DWT398FFN (αS,4S,5R)-α-Amino-3-chloro-4,5-dihydro-4-hydroxy-5-isoxazoleacetic acid CAS: 54549-02-9
NSC: 176324
PUBCHEM: 162751
FDA UNII: 7DWT398FFN
EPA CompTox: DTXSID90202970
Record Info
IDZkgqrJCL6oLFCyftT6QMKy
CreatedApril 10, 2026, 10:14 p.m.
ModifiedApril 10, 2026, 11:37 p.m.
EnrichedApril 11, 2026, 12:09 a.m.
Data SourceFDA Substance Registry (openFDA)