DL-Alanine, N-DL-alanyl-

• Formula: C₆H₁₂N₂O₃
• Molecular weight: 160.1711
• IUPAC Standard InChI: InChI=1S/C6H12N2O3/c1-3(7)5(9)8-4(2)6(10)11/h3-4H,7H2,1-2H3,(H,8,9)(H,10,11) Copy

  
• IUPAC Standard InChIKey: DEFJQIDDEAULHB-UHFFFAOYSA-N Copy
• CAS Registry Number: 2867-20-1
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  The 3d structure may be viewed using Java or Javascript.
• Stereoisomers:
  • L-Alanine, N-L-alanyl-
• Other names: Alanine, N-DL-alanyl-, DL-; DL-Ala-DL-Ala; DL-Alanyl-DL-alanine; N-DL-Alanyl-DL-alanine
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Condensed phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data
  • Ion clustering data
  • References
  • Notes
• Other data available:
  • Mass spectrum (electron ionization)
• Options:
  • Switch to SI units

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• NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)

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Condensed phase thermochemistry 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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Constant pressure heat capacity of solid

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 fusion

Reaction thermochemistry 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:
B - John E. Bartmess
RCD - Robert C. Dunbar

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

CAS Reg. No. 581782-45-8 +  = C₁₂H₂₃N₄O₆^-

By formula: CAS Reg. No. 581782-45-8 + C₆H₁₂N₂O₃ = C₁₂H₂₃N₄O₆^-

 +  = ( • )

By formula: Na⁺ + C₆H₁₂N₂O₃ = (Na⁺ • C₆H₁₂N₂O₃)

Ion clustering 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: Robert C. Dunbar

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

 +  = ( • )

By formula: Na⁺ + C₆H₁₂N₂O₃ = (Na⁺ • C₆H₁₂N₂O₃)

References

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Ion clustering data, Notes

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

Diaz, Domalski, et al., 1992
Diaz, E.L.; Domalski, E.S.; Colbert, J.C., Enthalpies of combustion of glycylglycine and DL-alanyl-DL-alamine, J. Chem. Thermodyn., 1992, 24, 1311-1318. [all data]

Kulikov, Kozlov, et al., 1989
Kulikov, O.V.; Kozlov, V.A.; Malenkina, L.I.; Badelin, V.G., Heat capacities of amino acids and peptides and excess characteristics ot their aqueous solutions, Sbornik Nauch. Trud., Termodin. Rast. neelect., Ivanovo, Inst. nevod. rast., 1989, Akad. [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]

Liu, Wyttenbacj, et al., 2004
Liu, D.; Wyttenbacj, T.; Carpenter, C.J.; Bowers, M.T., Investigation of Non-Covalent Interactions in Deprotonated Peptides: Structural and Energetic Competition between Aggregation and Hydration, J. Am. Chem. Soc., 2004, 126, 10, 3261, https://doi.org/10.1021/ja0393628 . [all data]

Cerda, Hoyau, et al., 1998
Cerda, B.A.; Hoyau, S.; Ohanessian, G.; Wesdemiotis, C., PAs of Peptides, J. Am. Chem. Soc., 1998, 120, 2437. [all data]

Notes

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Ion clustering data, References

• Symbols used in this document:
  

  Cp,solid	Constant pressure heat capacity of solid
  ΔcH°solid	Enthalpy of combustion of solid at standard conditions
  ΔfH°solid	Enthalpy of formation of solid at standard conditions
  ΔfusH	Enthalpy of fusion
  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions

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