2-(3-(4-Chlorophenyl)-1-(4-methoxyphenyl)-1H-pyrazol-4-yl)acetic acid CAS 70598-14-0
| CAS No. | 70598-14-0 |
| Molecular Formula | C18H15ClN2O3 |
| Molecular Weight | 342.78 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2-(3-(4-Chlorophenyl)-1-(4-methoxyphenyl)-1H-pyrazol-4-yl)acetic acid (CAS 70598-14-0), molecular formula C18H15ClN2O3 and molecular weight 342.78 g/mol, is a CATO reference standard with documented purity and traceability.
2-(3-(4-Chlorophenyl)-1-(4-methoxyphenyl)-1H-pyrazol-4-yl)acetic acid (C18H15ClN2O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures 2-(3-(4-Chlorophenyl)-1-(4-methoxyphenyl)-1H-pyrazol-4-yl)acetic 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 | C18H15ClN2O3 |
| Molecular Weight | 342.78 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.) | 1977 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chlorophenyl Standards
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- 3-(2-Chlorophenyl)-N-(4-methoxyphenyl)-5-methylisoxazole-4-carboxamide (CAS 153947-76-3)
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- [(3Z)-1-[(4-Chlorophenyl)methyl]-5-methyl-2-oxo-2,3-dihydro-1H-indol-3-ylidene]amino acetate (CAS 320420-83-5)
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Recommended Standards
- 1-[(4-Chlorophenyl)methyl]-3-[(4-methylphenyl)methyl]imidazolidine-2,4,5-trione (CAS 478262-67-8)
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- 1-(Benzenesulfonyl)-3-(3-chloro-4-cyano-1,2-thiazol-5-yl)urea (CAS 866154-06-5)
- 2-[(2-chlorophenyl)formamido]-3-(1H-indol-3-yl)propanoic acid (CAS 39545-27-2)
- 3,4-Bis(difluoromethoxy)aniline (CAS 71791-36-1)
- 2-(4-(Trifluoromethyl)thiazol-5-yl)ethan-1-ol (CAS 69439-09-4)
- 3-(3-Azetidinyloxy)-N,N-diethylaniline (CAS 1219960-93-6)
- (S)-2-Amino-2-(p-tolyl)ethanol hydrochloride (CAS 1256974-17-0)
- 4,6-Di(4-carboxyphenyl)pyrimidine (CAS 609356-00-5)
- Sofosbuvir Impurity 112 (CAS 62062-65-1)
- Sodium carbosulfonate impurity 32 (CAS CATO-C4X-229132)
- (1S,5R)-2-Oxabicyclo[3.3.0]oct-6-en-3-one (CAS 43119-28-4)
- 4-Fluoro-5,6,7,8-tetrahydro-6-oxo-2-naphthalenecarbonitrile (CAS 1337843-56-7)
- Semaglutide Impurity 125 xTFA Salt (CAS CATO-C4X-2226125)
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