5-Methyl-2-pyrazinecarboxylic acid
- CAS NO.：5521-55-1
- Empirical Formula: C6H6N2O2
- Molecular Weight: 138.12
- MDL number: MFCD00068241
- EINECS: 413-260-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-07-16 07:06:08
What is 5-Methyl-2-pyrazinecarboxylic acid?
Chemical properties
Pale Brown Powder
The Uses of 5-Methyl-2-pyrazinecarboxylic acid
5-Methyl-2-pyrazinecarboxylic acid may be used in the preparation of novel europium(III) complexes, (5-methyl-2-pyrazinecarboxylato) (phenanthroline)europium(III). It may be used in the synthesis of Ln-metal organic frameworks (MOFs).
General Description
5-Methyl-2-pyrazinecarboxylic acid is a pyrazine derivative. Simultaneous membrane based solvent extraction (MBSE) and membrane based solvent stripping (MBSS) of 5-methyl-2-pyrazine carboxylic acid (MPCA) has been studied. Mechanism of pertraction of MPCA through layered bulk liquid membranes has been studied. MPCA reacts with Ln(NO3)3·6H2O and K4[W(CN)8]·2H2O to form unique three-dimensional network structure which contains open channels.
Synthesis
5-Methylpyrazine-2-carboxylic acid is an intermediate of the lipid-lowering drug amoximus. It can be prepared by electrolytic oxidation of 2,5-dimethyl or 2-methyl-5-(substituted) methylpyrazine.
Properties of 5-Methyl-2-pyrazinecarboxylic acid
| Melting point: | 167-171 °C(lit.) |
| Boiling point: | 253.51°C (rough estimate) |
| Density | 1.3471 (rough estimate) |
| refractive index | 1.5100 (estimate) |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| solubility | DMSO (Slightly), Methanol (Slightly) |
| form | Amorphous Powder |
| pka | 3.53±0.10(Predicted) |
| color | Orange |
| BRN | 116005 |
| InChI | InChI=1S/C6H6N2O2/c1-4-2-8-5(3-7-4)6(9)10/h2-3H,1H3,(H,9,10) |
| CAS DataBase Reference | 5521-55-1(CAS DataBase Reference) |
| NIST Chemistry Reference | 2-Methylpyrazine-5-carboxylic acid(5521-55-1) |
Safety information for 5-Methyl-2-pyrazinecarboxylic acid
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05 |
| GHS Hazard Statements |
H318:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 5-Methyl-2-pyrazinecarboxylic acid
| InChIKey | RBYJWCRKFLGNDB-UHFFFAOYSA-N |
| SMILES | C1(C(O)=O)=NC=C(C)N=C1 |
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