3-Mercaptopropionic acid

• Formula: C₃H₆O₂S
• Molecular weight: 106.144
• IUPAC Standard InChI: InChI=1S/C3H6O2S/c4-3(5)1-2-6/h6H,1-2H2,(H,4,5) Copy

  
• IUPAC Standard InChIKey: DKIDEFUBRARXTE-UHFFFAOYSA-N Copy
• CAS Registry Number: 107-96-0
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Other names: 3-Mercaptopropanoic acid; β-Mercaptopropionic acid; Propanoic acid, 3-mercapto-; β-Thiopropionic acid; Hydracrylic acid, 3-thio-; Mercaptopropionic acid; Propionic acid, 3-mercapto-; 3-Thiopropionic acid; 3MPA; 3-Thiopropanoic acid; 2-Mercaptoethanecarboxylic acid; NSC 437; β-Mercaptopropanoic acid; 3-Thiolpropanoic acid
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• Information on this page:
  • Phase change data
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
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Phase change data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Reduced pressure boiling point

Enthalpy of fusion

Entropy of fusion

References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985 . [all data]

Huffman and Ellis, 1935
Huffman, H.M.; Ellis, E.L., Thermal data. III. The heat capacities, entropies and free energies of four organic compounds containing sulfur, J. Am. Chem. Soc., 1935, 57, 46-48. [all data]

Notes

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• Symbols used in this document:
  

  Tboil	Boiling point
  ΔfusH	Enthalpy of fusion
  ΔfusS	Entropy of fusion

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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