- InChI
- InChI=1S/C5H6N2/c6-5-3-1-2-4-7-5/h1-4H,(H2,6,7)
- InChI Key
- ICSNLGPSRYBMBD-UHFFFAOYSA-N
- Formula
- C5H6N2
- SMILES
- Nc1ccccn1
- Molecular Weight1
- 94.11
- CAS
- 504-29-0
- Other Names
-
- .alpha.-aminopyridine
- 1,2-dihydro-2-iminopyridine
- 2-Pyridylamine
- 2-pyridinamine
- Amino-2 pyridine
- NSC 431
- o-Aminopyridine
- pyridine, 2-amino-
- «alpha»-Aminopyridine
- «alpha»-Pyridinamine
- «alpha»-Pyridylamine
- «beta»-Pyridylamine
- ω : Acentric Factor.
- PAff : Proton affinity (kJ/mol).
- BasG : Gas basicity (kJ/mol).
- ΔcH°solid : Standard solid enthalpy of combustion (kJ/mol).
- ΔfG° : Standard Gibbs free energy of formation (kJ/mol).
- ΔfH°gas : Enthalpy of formation at standard conditions (kJ/mol).
- ΔfH°solid : Solid phase enthalpy of formation at standard conditions (kJ/mol).
- ΔfusH : Enthalpy of fusion at a given temperature (kJ/mol).
- ΔsubH° : Enthalpy of sublimation at standard conditions (kJ/mol).
- ΔvapH° : Enthalpy of vaporization 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).
- Pc : Critical Pressure (kPa).
- Inp : Non-polar retention indices.
- I : Polar retention indices.
- Tboil : Normal Boiling Point Temperature (K).
- Tboilr : Boiling point at reduced pressure (K).
- Tc : Critical Temperature (K).
- Tfus : Normal melting (fusion) point (K).
- Vc : Critical Volume (m3/kmol).
- 1: Molecular weight from the IUPAC atomic weights tables.
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Physical Properties
| Property | Value | Unit | Source |
|---|---|---|---|
| ω | 0.4197 | Relay (1.0) Calculated Property | |
| PAff | 947.20 | kJ/mol | NIST |
| BasG | 915.30 | kJ/mol | NIST |
| ΔcH°solid | -2864.40 ± 0.50 | kJ/mol | NIST |
| ΔfG° | 236.89 | kJ/mol | Relay (1.0-beta) Calculated Property |
| ΔfH°gas | 118.10 ± 1.10 | kJ/mol | NIST |
| ΔfH°solid | 39.40 ± 0.80 | kJ/mol | NIST |
| ΔsubH° | [76.50; 78.70] | kJ/mol |
|
| ΔsubH° | 76.50 ± 0.40 | kJ/mol | NIST |
| ΔsubH° | 78.70 ± 0.80 | kJ/mol | NIST |
| ΔsubH° | 78.70 | kJ/mol | NIST |
| ΔsubH° | 78.70 ± 0.80 | kJ/mol | NIST |
| ΔvapH° | 61.90 | kJ/mol | Relay (1.0) Calculated Property |
| IE | [8.00; 9.30] | eV |
|
| IE | 8.10 ± 0.00 | eV | NIST |
| IE | 8.00 | eV | NIST |
| IE | 9.30 | eV | NIST |
| IE | 8.40 | eV | NIST |
| IE | 8.50 ± 0.10 | eV | NIST |
| IE | 8.34 | eV | NIST |
| IE | 8.85 ± 0.05 | eV | NIST |
| log10WS | -0.32 | Relay (1.0) Calculated Property | |
| logPoct/wat | 0.664 | Crippen Calculated Property | |
| McVol | 77.510 | ml/mol | McGowan Calculated Property |
| Pc | 5222.90 | kPa | Relay (1.0-beta) Calculated Property |
| Inp | [1002.00; 1002.00] |
|
|
| Inp | 1002.00 | NIST | |
| Inp | 1002.00 | NIST | |
| I | [1873.00; 1915.00] |
|
|
| I | 1892.00 | NIST | |
| I | 1915.00 | NIST | |
| I | 1896.00 | NIST | |
| I | 1889.00 | NIST | |
| I | 1906.00 | NIST | |
| I | 1873.00 | NIST | |
| I | 1892.00 | NIST | |
| Tboil | [477.00; 480.20] | K |
|
| Tboil | 480.20 | K | NIST |
| Tboil | 477.00 | K | NIST |
| Tc | 733.07 | K | Relay (1.0) Calculated Property |
| Tfus | [329.15; 331.65] | K |
|
| Tfus | 330.95 | K | Solubility of 2-Aminopyridine in Acetone, Chloroform, and Ethyl Acetate |
| Tfus | 330.70 | K | Liquid-Liquid Equilibria for Systems of 1-Butanol + Water + 2,6-Diaminopyridine and 1-Butanol + Water + 2-Aminopyridine |
| Tfus | 330.95 | K | Solubility of 2-Aminopyridine in Ethanol + n-Butyl Acetate from (288.15 to 318.15) K |
| Tfus | 330.60 | K | NIST |
| Tfus | Outlier 329.15 ± 1.50 | K | NIST |
| Tfus | 331.65 ± 0.20 | K | NIST |
| Vc | 0.276 | m3/kmol | Relay (1.0) Calculated Property |
Temperature Dependent Properties
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| ΔfusH | 15.30 | kJ/mol | 331.50 | NIST |
Pressure Dependent Properties
| Property | Value | Unit | Pressure (kPa) | Source |
|---|---|---|---|---|
| Tboilr | 378.00 ± 1.00 | K | 2.70 | NIST |
Similar Compounds
Find more compounds similar to 2-Aminopyridine.
Mixtures
- 2-Aminopyridine + Acetone
- Trichloromethane + 2-Aminopyridine
- 2-Aminopyridine + Ethyl Acetate
- 2-Aminopyridine + 1-Butanol + Water
- 2-Aminopyridine + Acetic acid, butyl ester
- 2-Aminopyridine + Ethanol
- 2-Aminopyridine + Ethanol + Acetic acid, butyl ester
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
- Solubility of 2-Aminopyridine in Acetone, Chloroform, and Ethyl Acetate
- Liquid-Liquid Equilibria for Systems of 1-Butanol + Water + 2,6-Diaminopyridine and 1-Butanol + Water + 2-Aminopyridine
- Solubility of 2-Aminopyridine in Ethanol + n-Butyl Acetate from (288.15 to 318.15) K
- McGowan Method
- NIST Webbook
Note: Cheméo is only indexing the data, follow the source links to retrieve the latest data. The source is also providing more information like the publication year, authors and more.
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Outlier This icon means
that the value is more than 2 standard deviations away from the
property mean.