≥96% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Room temperature Ships Normal Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
5-hydroxypyrazine-2-carboxylic acid , a metabolite of anti-tuberculosis drug pyrazinamide (PZA).
| Canonical Smiles | C1=C(N=CC(=O)N1)C(=O)O |
|---|---|
| IUPAC Name | 6-oxo-1H-pyrazine-3-carboxylic acid |
| InChIKey | CGQFCIHUUCMACC-UHFFFAOYSA-N |
| INCHI | 1S/C5H4N2O3/c8-4-2-6-3(1-7-4)5(9)10/h1-2H,(H,7,8)(H,9,10) |
| Isomeric SMILES | C1=C(N=CC(=O)N1)C(=O)O |
| WGK Germany | 3 |
| Molecular Weight | 140.10 |
| Beilstein | 775641 |
| Reaxy-Rn | 5505058 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=5505058&ln= |
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →Full quality attributes and acceptance criteria for this grade.
View spec sheet →Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Organoheterocyclic compounds |
| Class | Diazines |
| Subclass | Pyrazines |
| Intermediate Tree Nodes | Pyrazine carboxylic acids and derivatives |
| Direct Parent | Pyrazine carboxylic acids |
| Alternative Parents | Vinylogous amides Heteroaromatic compounds Lactams Monocarboxylic acids and derivatives Carboxylic acids Azacyclic compounds Organopnictogen compounds Organooxygen compounds Organonitrogen compounds Organic oxides Hydrocarbon derivatives |
| Molecular Framework | Aromatic heteromonocyclic compounds |
| Substituents | Pyrazine carboxylic acid - Vinylogous amide - Heteroaromatic compound - Lactam - Carboxylic acid derivative - Carboxylic acid - Monocarboxylic acid or derivatives - Azacycle - Organic oxygen compound - Organooxygen compound - Organonitrogen compound - Organopnictogen compound - Organic nitrogen compound - Organic oxide - Hydrocarbon derivative - Aromatic heteromonocyclic compound |
| Description | This compound belongs to the class of organic compounds known as pyrazine carboxylic acids. These are heterocyclic compounds containing a pyrazine ring substituted by one or more carboxylic acid groups. |
| External Descriptors | Not available |
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
 J2422536 | Certificate of Analysis | Sep 13, 2024 | H124236 |
| J2422537 | Certificate of Analysis | Sep 13, 2024 | H124236 |
| J2422553 | Certificate of Analysis | Sep 13, 2024 | H124236 |
| J2422554 | Certificate of Analysis | Sep 13, 2024 | H124236 |
| Molecular Weight | 140.100 g/mol |
|---|---|
| XLogP3 | -1.000 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 1 |
| Exact Mass | 140.022 Da |
| Monoisotopic Mass | 140.022 Da |
| Topological Polar Surface Area | 78.800 Ų |
| Heavy Atom Count | 10 |
| Formal Charge | 0 |
| Complexity | 241.000 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 0 |
| Covalently-Bonded Unit Count | 1 |
