4-(1-Pyrazolyl)benzoic Acid CAS 16209-00-0
| CAS No. | 16209-00-0 |
| Molecular Formula | C10H8N2O2 |
| Molecular Weight | 188.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-(1-Pyrazolyl)benzoic 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.
CATO supplies 4-(1-Pyrazolyl)benzoic Acid (CAS 16209-00-0), a certified reference material (molecular formula C10H8N2O2, MW 188.18 g/mol) for analytical method development and quality control.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 4-(1-Pyrazolyl)benzoic Acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 188.18 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C10H8N2O2 |
| Molecular Weight | 188.18 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.) | 1961 |
| Nitrogen Atoms | 2 |
Related Pyrazolyl Standards
- 4-(4-Pyrazolyl)benzoic Acid (CAS 1017794-47-6)
- 2-(1-Pyrazolyl)benzoic Acid (CAS 55317-53-8)
- 3-(3-Pyrazolyl)phenylboronic Acid (CAS 1100095-25-7)
- 4-[(1-Pyrazolyl)methyl]benzylamine (CAS 892502-07-7)
- 4’-(1-Pyrazolyl)acetophenone (CAS 25699-98-3)
- 5-(1-Methyl-5-pyrazolyl)isoxazole-3-carboxylic Acid (CAS 1006349-18-3)
- 4-(1-pyrazolyl)benzaldehyde 4-(1H-Pyrazol-1-yl)benzaldehyde 4-(1h-pyrazol-1-yl)benzaldehyde, 95+% 4-(1h-pyrazol-1-yl)benzenecarbaldehyde 4-Pyrazol-1-yl-benzaldehyde 99662-34-7 asinex-reag bas 08767263 chembrdg-bb 4004820 timtec-bb sbb010131 (CAS 99662-34-7)
- 2-(1-Ethyl-4-pyrazolyl)morpholine (CAS 1803600-81-8)
Recommended Standards
- 5-Cyano-3-cyclopropylpicolinic acid (CAS 1612257-89-2)
- 3-(Furan-3-yl)benzoic acid (CAS 168619-07-6)
- Methyl Quinazoline-2-Carboxylate (CAS 1607787-61-0)
- 8-Methyl-7-nitroquinoline (CAS 168770-38-5)
- 2-(4-Aminopiperidin-1-yl)-N-(5-methylisoxazol-3-yl)acetamide (CAS 1153252-39-1)
- 4-Methoxy-2-(pyridin-2-yl)-6-(trifluoromethyl)pyrimidine (CAS 338418-04-5)
- 4-Benzoyldihydrofuran-2,3-dione (CAS 5431-88-9)
- Methyl (2S,4R)-1-Boc-4-methylpyrrolidine-2-carboxylate (CAS 138512-74-0)
- Pyrrolidine-3-carboximidamide (CAS 158357-85-8)
- Atorvastatin Impurity 26 (CAS 444577-70-2)
- 3-CARBAMOYL-4-FLUOROBENZOIC ACID (CAS 1534121-96-4)
- (4-Methoxy-1-phenylnaphthalen-2-yl)methanol (CAS 76694-22-9)
- Methyl 4-methoxy-1H-pyrrolo[3,2-c]pyridine-2-carboxylate (CAS 871583-16-3)
- [D-Glu]3-Semaglutide (CAS CATO-C4X-2226253)
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