1-(3-cyanophenyl)-1H-pyrazole-3-carboxylic acid CAS 1803595-29-0
| CAS No. | 1803595-29-0 |
| Molecular Formula | C11H7N3O2 |
| Molecular Weight | 213.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 1-(3-cyanophenyl)-1H-pyrazole-3-carboxylic acid (CAS 1803595-29-0), a certified reference material (molecular formula C11H7N3O2, MW 213.19 g/mol) for analytical method development and quality control.
1-(3-cyanophenyl)-1H-pyrazole-3-carboxylic acid (C11H7N3O2) 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), 1-(3-cyanophenyl)-1H-pyrazole-3-carboxylic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C11H7N3O2 |
| Molecular Weight | 213.19 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.) | 1995 |
| Nitrogen Atoms | 3 |
Related cyanophenyl Standards
- 1-(4-Cyanophenyl)-1H-imidazole-4-carboxylic acid (CAS 1239723-51-3)
- 1-(4-Cyanophenyl)-1H-pyrazole-3-carboxylic acid (CAS 1239742-64-3)
- 1-(2-Cyanophenyl)-1h-pyrazole-3-carboxylic acid (CAS 1342429-73-5)
- 5-(2-Cyanophenyl)furan-2-carboxylic acid (CAS 893638-36-3)
- 5-(3-Cyanophenyl)furan-2-carboxylic acid (CAS 253679-32-2)
- 5-(4-Cyanophenyl)-1h-pyrazole-3-carboxylic acid (CAS 934605-31-9)
- 5-(4-Cyanophenyl)furan-2-carboxylic acid (CAS 52938-94-0)
- 4-(3-Cyanophenyl)-2-fluorophenol (CAS 1261978-55-5)
Recommended Standards
- Ethyl 2-(5-methyl-4-nitro-1H-pyrazol-1-yl)acetate (CAS 1795275-09-0)
- 1-[trans-4-methoxyoxolan-3-yl]-1H-1,2,3-triazole-4-carboxylic acid (CAS 1808643-97-1)
- 176853-91-1 2-Nitro-1H-pyrido[2,3-b]indole 2-Nitro-9H-pyrido[2,3-b]indole Nitro-A|AC (CAS 176853-91-1)
- Ethyl 1-ethyl-3-nitro-1H-pyrazole-5-carboxylate (CAS 1823967-64-1)
- 3-Bromo-4-(((2-hydroxyethyl)(methyl)amino)methyl)benzoic acid (CAS 1131594-34-7)
- (R)-2-fluoro-6-(pyrrolidin-2-yl)benzonitrile (CAS 1213012-59-9)
- Fmoc-Asp-allyl ester (CAS 144120-53-6)
- Methyl 3-fluoro-5-(2-fluorophenyl)benzoate (CAS 1820605-13-7)
- Ethyl 1-Benzylpiperidine-4-carboxylate (CAS 24228-40-8)
- (1S,2R)-2-phenylcyclohexan-1-amine (CAS 37982-23-3)
- Sodium 8-hydroxynaphthalene-1,6-disulfonate (CAS 83732-80-3)
- 7-Methyl-1,2,3,4-tetrahydroacridine-9-carboxylic acid (CAS 345621-27-4)
- 3-Methyl-alpha-(trifluoromethyl)benzyl Alcohol (CAS 1737-23-1)
- Semaglutide impurity 59 (CAS CATO-C4X-222659)
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