DL-Aspartic acid

CAS Registry Number®

617-45-8

CAS Name

DL-Aspartic acid

Molecular Formula

C4H7NO4

Molecular Mass

133.10

Cite this Page

DL-Aspartic acid.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=617-45-8 (retrieved 2025-07-10) (CAS RN: 617-45-8).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Melting Point (1)

    275 °C

  • Density (2)

    1.663 g/cm³

Source(s)

Other Names and Identifiers

InChI

InChI=1S/C4H7NO4/c5-2(4(8)9)1-3(6)7/h2H,1,5H2,(H,6,7)(H,8,9)

InChIKey

InChIKey=CKLJMWTZIZZHCS-UHFFFAOYSA-N

SMILES

C(CC(O)=O)(C(O)=O)N

Canonical SMILES

O=C(O)CC(N)C(=O)O

Other Names for this Substance

  • Aspartic acid
  • Aspartic acid, DL-
  • DL-Aspartic acid
  • DL-Aminosuccinic acid
  • (RS)-Aspartic acid

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Deleted or Replaced CAS Registry Numbers

874742-68-4

CAS INSIGHTSTM
Aspergillus fungus, computer illustration. This is a toxic fungus that causes diseases in humans.