# (+-)-Aspartic Acid

CAS: 617-45-8
PubChem CID: 424
InChIKey: CKLJMWTZIZZHCS-UHFFFAOYSA-N
Wikidata: Q27109481
Molecular formula: C4H7NO4
Molar mass: 133.10 g/mol
IUPAC: 2-aminobutanedioic acid
SMILES: C(C(C(=O)O)N)C(=O)O
InChI: InChI=1S/C4H7NO4/c5-2(4(8)9)1-3(6)7/h2H,1,5H2,(H,6,7)(H,8,9)
logP (XLogP3): -2.8
PSA: 101 A^2
Hydrogen bond donors: 3
Hydrogen bond acceptors: 5
Rotatable bonds: 3
Heavy atoms: 9
3D structure: 16 atoms, 15 bonds

## About the compound

(+-)-Aspartic Acid is a chemical compound registered under CAS number 617-45-8. Molecular formula: C4H7NO4. Molar mass: 133.10 g/mol. The full systematic IUPAC name is: 2-aminobutanedioic acid. The molecule contains 16 atoms connected by 15 chemical bonds. 
Chemical data comes from the PubChem (NIH), ChEMBL (EBI) and NIST WebBook databases. GHS statement translations comply with the CLP Regulation (EC 1272/2008). Interactive 3D model and 2D skeleton available at: https://molgod.org/molecule/617-45-8/


## Synonyms

  - (+-)-Aspartic acid
  - RefChem:905505
  - DL-ASPARTIC ACID
  - 617-45-8
  - 2-aminobutanedioic acid
  - DL-Aminosuccinic acid
  - DL-Asparagic acid
  - Aspartic acid, DL-
  - DL-Asp-OH
  - Acid D,L-aspart
  - H-DL-Asp-OH
  - (+/-)-2-Aminosuccinic acid

## Data sources

  - PubChem CID 424: https://pubchem.ncbi.nlm.nih.gov/compound/424
  - Wikidata: https://www.wikidata.org/wiki/Q27109481
  - NIST WebBook: https://webbook.nist.gov/cgi/cbook.cgi?ID=617-45-8
  - ChEMBL: https://www.ebi.ac.uk/chembl/g/#search_results/all/query=617-45-8

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Last updated: 2026-09-25
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