1-(2-Chlorophenyl)-3-(4-chlorophenyl)-1H-pyrazole-5-carboxylic acid CAS 618102-53-7
| CAS No. | 618102-53-7 |
| Molecular Formula | C16H10Cl2N2O2 |
| Molecular Weight | 333.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C16H10Cl2N2O2, 1-(2-Chlorophenyl)-3-(4-chlorophenyl)-1H-pyrazole-5-carboxylic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 333.17 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies 1-(2-Chlorophenyl)-3-(4-chlorophenyl)-1H-pyrazole-5-carboxylic acid (CAS 618102-53-7), a certified reference material (molecular formula C16H10Cl2N2O2, MW 333.17 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 1-(2-Chlorophenyl)-3-(4-chlorophenyl)-1H-pyrazole-5-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 | C16H10Cl2N2O2 |
| Molecular Weight | 333.17 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chlorophenyl Standards
- (4Z)-4-{[(4-chlorophenyl)amino]methylidene}-1-(6-chloropyridin-2-yl)-4,5-dihydro-1H-pyrazol-5-one (CAS 320419-11-2)
- 1-(3-Chlorophenyl)-3-(4-chlorophenyl)-1H-pyrazole-5-carboxylic acid (CAS 618102-47-9)
- 1-(3-Chlorophenyl)-5-(4-chlorophenyl)-1H-pyrazole-3-carboxylic acid (CAS 477711-99-2)
- 1,3-Bis(4-chlorophenyl)-1H-pyrazole-5-carboxylic acid (CAS 618102-37-7)
- 1,5-Bis(4-chlorophenyl)-1H-pyrazole-3-carboxylic acid (CAS 477712-01-9)
- 3-(2-Chlorophenyl)-N-(3-chlorophenyl)isoxazole-5-carboxamide (CAS 477859-16-8)
- 5-(2-Chlorophenyl)-1-(3-chlorophenyl)-1H-pyrazole-3-carboxylic acid (CAS 477712-04-2)
- (3-Chlorophenyl)(3-(4-chlorophenyl)-5,6-dihydropyridazin-1(4H)-yl)methanone (CAS 159799-55-0)
Recommended Standards
- 1-(2,4-Dichlorophenyl)-5-phenyl-1H-pyrazole-3-carboxylic acid (CAS 477712-39-3)
- (R)-O-(2,5-Dichlorophenyl) O-methyl phenylphosphonothioate (CAS 73306-98-6)
- (3-Iodo-benzyl)-carbamic acid tert-butyl ester (CAS 263351-43-5)
- (3,7-Dichloroquinolin-8-yl)methyl nicotinate (CAS 89517-12-4)
- (S)-1-(5-chloro-2-methylphenyl)ethan-1-amine (CAS 1213676-85-7)
- 3-Bromo-4-fluoroanisole (CAS 1161497-23-9)
- 1-(5-(2-Methyl-1H-imidazol-1-yl)-2-nitrophenyl)-piperazine dihydrochloride (CAS 1177093-21-8)
- 2,2,2-Trifluoro-1-phenylethyl trifluoromethanesulfonate (CAS 84877-46-3)
- Sodium 3-((ethoxycarbonothioyl)thio)propane-1-sulfonate (CAS 93894-04-3)
- Atracurium Impurity 105 (CAS CATO-C4X-1850105)
- 1-(1H-Pyrrol-2-yl)-1-(thiophen-2-yl)ethanol (CAS 944671-63-0)
- 5-Bromo-3-methylbenzo[b]thiophene-2-sulphonyl chloride (CAS 338797-11-8)
- Methyl 4-cyclopropylbenzoate (CAS 148438-03-3)
- Semaglutide（sodium salt） (CAS CATO-C4X-222619)
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