- InChI
- InChI=1S/C5H4N2O2/c8-5(9)4-3-6-1-2-7-4/h1-3H,(H,8,9)
- InChI Key
- NIPZZXUFJPQHNH-UHFFFAOYSA-N
- Formula
- C5H4N2O2
- SMILES
- O=C(O)c1cnccn1
- Molecular Weight1
- 124.10
- CAS
- 98-97-5
- Other Names
-
- 1,4-diazinecarboxylic acid
- 2-carboxypyrazine
- 2-pyrazinecarboxylic acid
- 2-pyrazinoic acid
- NSC 13146
- Paradiazinecarboxylic acid
- Piazinecarboxylic acid
- Pyrazine-2-carboxylic acid
- Pyrazinemonocarboxylic acid
- Pyrazoic acid
- pyrazinecarboxylic acid
- pyrazinic acid
- ΔfH°gas : Enthalpy of formation at standard conditions (kJ/mol).
- IE : Ionization energy (eV).
- log10WS : Log10 of Water solubility in mol/l.
- logPoct/wat : Octanol/Water partition coefficient.
- McVol : McGowan's characteristic volume (ml/mol).
- ρs : Solid Density (kg/m3).
- Tfus : Normal melting (fusion) point (K).
- 1: Molecular weight from the IUPAC atomic weights tables.
Physical Properties
| Property | Value | Unit | Source |
|---|---|---|---|
| ΔfH°gas | -177.66 | kJ/mol | Relay (1.0) Calculated Property |
| IE | 9.61 | eV | Relay (1.0) Calculated Property |
| log10WS | -0.22 | Relay (1.0) Calculated Property | |
| logPoct/wat | 0.175 | Crippen Calculated Property | |
| McVol | 84.950 | ml/mol | McGowan Calculated Property |
| Tfus | 460.13 | K | Relay (1.0) Calculated Property |
Cheméo can also estimate Normal Boiling Point Temperature, Critical Temperature, Critical Pressure, Critical Volume, Enthalpy of vaporization at standard conditions, Standard Gibbs free energy of formation, Acentric Factor for this compound, but they fall outside the models' validated range, so they are not shown here. Open the prediction tool to compute them on demand.
Temperature Dependent Properties
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| ρs | 1200.00 | kg/m3 | 298.15 | Experimental thermochemical study of three monosubstituted pyrazines |
Similar Compounds
Find more compounds similar to Pyrazinoic acid.
Sources
- Cheméo Relay (1.0)
- Cheméo Relay (1.0, beta) Beta: served but experimental, data-limited and below our cross-validation release bar; the Joback value is recommended where available.
- Crippen Method
- Crippen Method
- Experimental thermochemical study of three monosubstituted pyrazines
- Low-temperature Heat Capacity and the Standard Molar Enthalpy of Formation of Compound Chromium(III) Tri(2-Pyrazinecarboxylate)
- McGowan Method
- NIST Webbook
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