Thiourea, methyl-

• Formula: C₂H₆N₂S
• Molecular weight: 90.147
• IUPAC Standard InChI: InChI=1S/C2H6N2S/c1-4-2(3)5/h1H3,(H3,3,4,5) Copy

  
• IUPAC Standard InChIKey: KQJQICVXLJTWQD-UHFFFAOYSA-N Copy
• CAS Registry Number: 598-52-7
• Chemical structure:
  This structure is also available as a 2d Mol file
• Other names: Methylthiocarbamide; Urea, 1-methyl-2-thio-; Methylthiourea; N-Methylthiocarbamide; N-Methylthiourea; 1-Methyl-2-thiourea; 1-Methylthiocarbamide; 1-Methylthiourea; Monomethylthiourea; NSC 30213; Pseudourea, 1-methyl-2-thio-; methyl-2-thiourea
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Phase change data
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Mass spectrum (electron ionization)
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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 by: William E. Acree, Jr., James S. Chickos

Enthalpy of sublimation

Enthalpy of fusion

Gas phase ion energetics 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:
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Ionization energy determinations

Appearance energy determinations

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.

Della Gatta, Józwiak, et al., 2000
Della Gatta, Giuseppe; Józwiak, Malgorzata; Brunetti, Bruno; Abate, Lorenzo, Enthalpies and entropies of fusion and of sublimation at the temperature 298.15 K of thiourea and sevenN-alkylthioureas, The Journal of Chemical Thermodynamics, 2000, 32, 8, 979-997, https://doi.org/10.1006/jcht.2000.0662 . [all data]

Ferro, Martino, et al., 1994
Ferro, Daniela; Martino, Rosalba; Gatta, Giuseppe Della, Sublimation enthalpies and entropies of thiourea, 1-methyl-2-thiourea, 1,3-dimethyl-2-thiourea, and 1,1,3,3-tetramethyl-2-thiourea, The Journal of Chemical Thermodynamics, 1994, 26, 2, 183-190, https://doi.org/10.1006/jcht.1994.1037 . [all data]

Baldwin, Maccoll, et al., Ind. 1966
Baldwin, M.; Maccoll, A.; Kirkien-Konasiewicz, A.; Saville, B., Ionisation potentials of the N-methylated thioureas, Chem., Ind. 1966, 286. [all data]

Loudon and Webb, 1977
Loudon, A.G.; Webb, K.S., The nature of the [C₂H₆N]⁺ and [CH₄N]⁺ ions formed by electron impact on methylated formamides, acetamides, ureas, thioureas and hexamethylphosphoramide, Org. Mass Spectrom., 1977, 12, 283. [all data]

Notes

Go To: Top, Phase change data, Gas phase ion energetics data, References

• Symbols used in this document:
  

  AE	Appearance energy
  ΔfusH	Enthalpy of fusion
  ΔsubH	Enthalpy of sublimation
  ΔsubH°	Enthalpy of sublimation at standard conditions

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