1-(Pyrazin-2-yl)-1h-imidazole-4-carboxylic acid CAS 1342526-35-5
| CAS No. | 1342526-35-5 |
| Molecular Formula | C8H6N4O2 |
| Molecular Weight | 190.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-(Pyrazin-2-yl)-1h-imidazole-4-carboxylic acid.
1-(Pyrazin-2-yl)-1h-imidazole-4-carboxylic acid (CAS 1342526-35-5), molecular formula C8H6N4O2 and molecular weight 190.16 g/mol, is a CATO reference standard with documented purity and traceability.
1-(Pyrazin-2-yl)-1h-imidazole-4-carboxylic acid (C8H6N4O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C8H6N4O2 |
| Molecular Weight | 190.16 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 4 |
Related Pyrazin Standards
- 1-(Pyrazin-2-yl)-1h-pyrazole-3-carboxylic acid (CAS 1014631-75-4)
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- 5-(Pyrazin-2-yl)-1H-pyrazole-3-carboxylic acid (CAS 1029108-75-5)
- 1-ethyl-3-(pyrazin-2-yl)-1h-pyrazol-5-ol (CAS 1279106-18-1)
- 3-(Pyrazin-2-yl)bicyclo[1.1.1]pentane-1-carboxylic acid (CAS 2025387-50-0)
- 1-(3-(Pyrazin-2-yl)-1H-1,2,4-triazol-5-yl)ethan-1-amine (CAS 958717-43-6)
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Recommended Standards
- 2-(2,3,4-Trifluorophenyl)propan-2-ol (CAS 1339650-65-5)
- 2-(Furan-3-yl)pyrimidine-4-carboxylic acid (CAS 1343325-43-8)
- 4-(4-Nitrophenyl)oxazole (CAS 13382-61-1)
- 1-Methoxy-3-(2,2,2-trifluoroethyl)benzene (CAS 1346414-72-9)
- 5-(1-bromoethyl)-2-fluoropyridine (CAS 1253571-23-1)
- methyl 4-cyanopiperidine-4-carboxylate hydrochloride (CAS 1205749-65-0)
- 3-(But-2-yne-1-sulfonyl)benzoic acid (CAS 1247835-19-3)
- 6,8-Dichloroimidazo[1,2-b]pyridazine-3-carboxylic acid (CAS 1177415-92-7)
- n-(1-(Furan-2-yl)propan-2-yl)isobutyramide (CAS 1235118-81-6)
- 3-[(tert-Butyldiphenylsilyl)oxy]-3-methylazetidine (CAS 1455010-26-0)
- N-((1H-benzo[d][1,2,3]triazol-1-yl)methyl)-N-(furan-2-ylmethyl)aniline (CAS 128860-68-4)
- 1-Bromo-2,4-dichloro-3-nitrobenzene (CAS 1805578-60-2)
- Hydroxyguanidine Sulfate (CAS 6345-29-5)
- [D-His]-Semaglutide B (x TFA Salt) (CAS CATO-C4X-2226117)
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