2-(1h-Pyrazole-3-amido)benzoic acid CAS 405278-63-9
| CAS No. | 405278-63-9 |
| Molecular Formula | C11H9N3O3 |
| Molecular Weight | 231.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 231.21 g/mol gives 2-(1h-Pyrazole-3-amido)benzoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-(1h-Pyrazole-3-amido)benzoic acid (CAS 405278-63-9) is a high-purity analytical reference standard with the molecular formula C11H9N3O3 and a molecular weight of 231.21 g/mol.
The molecular framework of 2-(1h-Pyrazole-3-amido)benzoic acid (C11H9N3O3) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 2-(1h-Pyrazole-3-amido)benzoic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H9N3O3 |
| Molecular Weight | 231.21 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 methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
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Recommended Standards
- 2-((2-Oxo-1,2-dihydropyrimidin-4-yl)amino)benzoic acid (CAS 64988-60-9)
- 2-(2-(Trifluoromethoxy)phenyl)pyrrolidine (CAS 886503-02-2)
- 1-Methyl-2-(3-nitrobenzoyl)-1H-imidazole (CAS 32902-21-9)
- 2-(3-Nitro-1h-pyrazol-1-yl)-1-phenylethan-1-one (CAS 5761-58-0)
- 1-Butyl-1H-pyrazole (CAS 52096-24-9)
- 5-Bromo-4-methyl-2-phenyl-pyridine (CAS 31686-64-3)
- (4-Cyclopropylpyridin-3-yl)boronic acid (CAS 1428882-23-8)
- 2-Ethoxy-4-(3-hydroxybutyl)phenol (CAS 1283091-06-4)
- tert-Butyl (2-((3-aminopropyl)amino)ethyl)carbamate (CAS 221296-50-0)
- 3-Fluoroazetidine-3-carboxamide hydrochloride (CAS 2231674-86-3)
- 2-(6-methoxypyridin-3-yl)ethan-1-amine dihydrochloride (CAS 812639-28-4)
- Amyl n-Octanoate (CAS 638-25-5)
- 2-Methoxy-N-methyl-7-nitroacridin-9-amine (CAS 56809-14-4)
- Semaglutide impurity 42 (CAS CATO-C4X-222642)
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