3-(4-Chlorophenyl)-1-(4-methoxyphenyl)-1H-pyrazole-5-carboxylic acid CAS 618102-41-3
| CAS No. | 618102-41-3 |
| Molecular Formula | C17H13ClN2O3 |
| Molecular Weight | 328.75 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-(4-Chlorophenyl)-1-(4-methoxyphenyl)-1H-pyrazole-5-carboxylic acid is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-(4-Chlorophenyl)-1-(4-methoxyphenyl)-1H-pyrazole-5-carboxylic acid (CAS 618102-41-3) is a high-purity analytical reference standard with the molecular formula C17H13ClN2O3 and a molecular weight of 328.75 g/mol.
Structurally, 3-(4-Chlorophenyl)-1-(4-methoxyphenyl)-1H-pyrazole-5-carboxylic acid (C17H13ClN2O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 328.75 g/mol, it falls into the moderately-high-molecular-weight range. 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.
CATO manufactures 3-(4-Chlorophenyl)-1-(4-methoxyphenyl)-1H-pyrazole-5-carboxylic 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 | C17H13ClN2O3 |
| Molecular Weight | 328.75 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-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; 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
- N-(2-Chlorophenyl)-5-oxo-1-(p-tolyl)-2,5-dihydro-1H-1,2,4-triazole-3-carboxamide (CAS 1000573-94-3)
- 1-(2-Chlorophenyl)-5-(4-methoxyphenyl)-1H-pyrazole-3-carboxylic acid (CAS 1330108-27-4)
- Benzyl (5-(4-chlorophenyl)oxazol-2-yl)carbamate (CAS 13575-29-6)
- (1-(4-Chlorophenyl)-1H-1,2,3-triazol-4-yl)methyl phenylcarbamate (CAS 338419-08-2)
- (4E)-2-(4-Chlorophenyl)-4-{[(4,6-dimethylpyrimidin-2-yl)amino]methylidene}-4,5-dihydro-1,3-oxazol-5-one (CAS 303998-86-9)
- [(3Z)-1-[(3-Chlorophenyl)methyl]-2-oxo-2,3-dihydro-1H-indol-3-ylidene]amino acetate (CAS 303998-09-6)
- [(3Z)-1-[(4-Chlorophenyl)methyl]-2-oxo-2,3-dihydro-1H-indol-3-ylidene]amino acetate (CAS 303997-82-2)
- [5-(2-Chlorophenyl)-1,2-oxazol-3-yl]methyl N-phenylcarbamate (CAS 343374-50-5)
Recommended Standards
- 3-(4-Chlorophenyl)-1-(2-methoxyphenyl)-1H-pyrazole-5-carboxylic acid (CAS 618102-57-1)
- 3-(4-Chlorophenyl)-2-oxo-2H-chromen-7-yl propionate (CAS 869080-11-5)
- 3-(3-Chloro-2-methylphenyl)-4-oxo-3,4-dihydrophthalazine-1-carbohydrazide (CAS 866039-09-0)
- 3-(4-Chlorophenyl)-7-(2-oxopropoxy)-2H-chromen-2-one (CAS 887860-30-2)
- 5-(2-Acetylphenyl)picolinic acid (CAS 1242338-99-3)
- 4-Methyl-3-(n-methylsulfamoyl)benzoic acid (CAS 90610-74-5)
- 3-(2,3-Dichlorophenyl)-1,2-oxazol-5-amine (CAS 1020996-74-0)
- 1-Morpholinocyclopentane-1-carboxylic acid (CAS 933690-15-4)
- 3-((tert-Butoxycarbonyl)amino)-4,4-dimethylpentanoicacid (CAS 856417-59-9)
- Oxcarbazepine EP Impurity B (CAS 28721-09-7)
- Adefovir Dipivoxil Impurity 35 (CAS 374678-39-4)
- Deferiprone Impurity 3 (CAS 42599-26-8)
- (4-Chloro-2,5-dimethylphenyl)methanol (CAS 1343274-82-7)
- Neuropeptide AF (human) (CAS 192387-38-5)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com