3-(Methylthio)propanoic acid

CAS Registry Number®

646-01-5

CAS Name

3-(Methylthio)propanoic acid

Molecular Formula

C4H8O2S

Molecular Mass

120.17

Cite this Page

3-(Methylthio)propanoic acid.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=646-01-5 (retrieved 2025-03-30) (CAS RN: 646-01-5).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Boiling Point (1)

    139 °C @ Press: 12 Torr

  • Melting Point (1)

    39-40 °C

  • Density (2)

    1.158 g/cm³ @ Temp: 20 °C

Source(s)

Other Names and Identifiers

InChI

InChI=1S/C4H8O2S/c1-7-3-2-4(5)6/h2-3H2,1H3,(H,5,6)

InChIKey

InChIKey=CAOMCZAIALVUPA-UHFFFAOYSA-N

SMILES

C(C(O)=O)CSC

Canonical SMILES

O=C(O)CCSC

Other Names for this Substance

  • Propanoic acid, 3-(methylthio)-
  • Propionic acid, 3-(methylthio)-
  • 3-(Methylthio)propanoic acid
  • 3-(Methylthio)propionic acid
  • 3-(Methylmercapto)propionic acid

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Deleted or Replaced CAS Registry Numbers

103722-83-4

CAS INSIGHTSTM
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