Methyl 2-(pyrazine-2-amido)benzoate CAS 69873-69-4
| CAS No. | 69873-69-4 |
| Molecular Formula | C13H11N3O3 |
| Molecular Weight | 257.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl 2-(pyrazine-2-amido)benzoate (C13H11N3O3) contains a nitrogen-containing heterocyclic scaffold, 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).
Methyl 2-(pyrazine-2-amido)benzoate (CAS 69873-69-4), molecular formula C13H11N3O3 and molecular weight 257.24 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C13H11N3O3 |
| Molecular Weight | 257.24 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 3 |
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- 2-(Pyrazine-2-carboxamido)thiazole-4-carboxylic acid (CAS 1105192-33-3)
- 2-(2-(Pyrazine-2-carboxamido)thiazol-4-yl)acetic acid (CAS 926204-94-6)
- 1-(Pyrazine-2-carboxamido)cyclohexanecarboxylic acid (CAS 402959-98-2)
- 4-(Pyrazine-2-carboxamido)benzoic acid (CAS 717854-83-6)
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Recommended Standards
- Methyl 2-(4-oxo-4,10-dihydrobenzo[4,5]imidazo[1,2-a]pyrimidin-2-yl)acetate (CAS 879616-49-6)
- Methyl 2-amino-5-benzoylpyrimidine-4-carboxylate (CAS 62328-08-9)
- Methyl 2-(3-nitrophenyl)benzoate (CAS 83527-96-2)
- Methyl 2'-nitro-[1,1'-biphenyl]-4-carboxylate (CAS 5737-78-0)
- 1-(2-Hydroxyethyl)-2-methyl-4,6-diphenylpyridin-1-ium perchlorate (CAS 69821-41-6)
- 2-(4-Ethylpiperazin-1-yl)-N-[3-fluoro-4-(4-phenylpiperazin-1-yl)phenyl]acetamide (CAS 692737-21-6)
- 4-Ethoxy-1-methyl-1H-indole-3-carbaldehyde (CAS 931127-51-4)
- ((2R,3S,4S,5R,6R)-3,4,5,6-tetrahydroxytetrahydro-2H-pyran-2-yl)methyl benzoate (CAS 90-75-5)
- 2-bromo-5-(cyclopentylmethyl)-1,3,4-thiadiaZole (CAS 1343062-22-5)
- Methyl 5-ethoxy-2-fluorobenzoate (CAS 2586127-12-8)
- N-Methoxy-N,3-dimethylisoxazole-4-carboxamide (CAS 496870-91-8)
- 4-Amino-1-(4-methoxyphenyl)pyrrolidin-2-one hydrochloride (CAS 1177292-63-5)
- 3-Methyl-2-(p-tolyl)butanoic acid (CAS 51632-36-1)
- D-[His]1-Semaglutide (CAS CATO-C4X-222652)
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