3-(4-Methoxyphenyl)-1,5-diphenyl-1H-pyrazole CAS 33045-40-8
| CAS No. | 33045-40-8 |
| Molecular Formula | C22H18N2O |
| Molecular Weight | 326.39 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 3-(4-Methoxyphenyl)-1,5-diphenyl-1H-pyrazole (CAS 33045-40-8), a certified reference material (molecular formula C22H18N2O, MW 326.39 g/mol) for analytical method development and quality control.
3-(4-Methoxyphenyl)-1,5-diphenyl-1H-pyrazole (C22H18N2O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; 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), 3-(4-Methoxyphenyl)-1,5-diphenyl-1H-pyrazole 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 | C22H18N2O |
| Molecular Weight | 326.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 2 |
Related Methoxyphenyl Standards
- 2-(4-(2-Methoxyphenyl)piperazin-1-yl)-N-(pyridin-2-yl)acetamide (CAS 146714-63-8)
- 2-(2-Methoxyphenyl)-4,5-diphenyl-1H-imidazole (CAS 1965-19-1)
- 1,3-Bis(4-methoxyphenyl)-2-propylpropane-1,3-dione (CAS 263717-49-3)
- 2-[(2-Methoxyphenyl)methylene]-3-phenyl-1-indanone (CAS 337921-79-6)
- 4-{[4-(2-Methoxyphenyl)piperazin-1-yl]methyl}benzoic acid (CAS 358387-25-4)
- 5-(3-Methoxyphenyl)-2,3-diphenylfuran (CAS 88406-99-9)
- 5-(4-Methoxyphenyl)-1,3-diphenyl-1H-pyrazole (CAS 27301-46-8)
- 5-(4-Methoxyphenyl)-2,3-diphenylfuran (CAS 68630-11-5)
Recommended Standards
- 3-(4-(Pentyloxy)benzoyl)phenyl acetate (CAS 890100-06-8)
- 3-(Benzylthio)-1-(3-fluoro-4-methylphenyl)pyrazin-2(1H)-one (CAS 899759-27-4)
- 3-(2-Ethylphenyl)-5-(3-methoxyphenyl)-1H-1,2,4-triazole (CAS 71368-30-4)
- 3-(Tert-butyl) 6-ethyl 9-methyl-7-oxo-3,9-diazabicyclo[3.3.1]nonane-3,6-dicarboxylate (CAS 625434-04-0)
- 1,1,1-trifluoro-3-methoxybutan-2-ol (CAS 1861967-76-1)
- 5-(4-Tert-butylphenyl)indoline (CAS 893736-15-7)
- 4-(2-Acetylphenyl)-2-chlorobenzoic acid (CAS 1355247-96-9)
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- Tert-butyl 4-(aminomethyl)-4-(pyrimidin-2-yl)piperidine-1-carboxylate (CAS 1373028-74-0)
- 1-((Trifluoromethyl)sulfonyl)azetidin-3-amine (CAS 1449278-62-9)
- (R)-(1-Fmoc-piperidin-2-yl)-acetic acid (R)-2-(1-(((9H-fluoren-9-yl)methoxy)carbonyl)piperidin-2-yl)acetic acid 193693-63-9 (CAS 193693-63-9)
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- (3-Ethylisoxazol-4-yl)methanol (CAS 1820651-17-9)
- ([13C6]Leu14)-Glucagon (1-29) (human, rat, porcine) trifluoroacetate salt (CAS 1802078-39-2)
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