3-(4-Methoxyphenyl)-1-methyl-1H-pyrazole CAS 73387-57-2
| CAS No. | 73387-57-2 |
| Molecular Formula | C11H12N2O |
| Molecular Weight | 188.23 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.
3-(4-Methoxyphenyl)-1-methyl-1H-pyrazole (CAS 73387-57-2), molecular formula C11H12N2O and molecular weight 188.23 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H12N2O, 3-(4-Methoxyphenyl)-1-methyl-1H-pyrazole contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 188.23 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C11H12N2O |
| Molecular Weight | 188.23 g/mol |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 2 |
Related Methoxyphenyl Standards
- 2-(4-Methoxyphenyl)-4-methyl-1H-imidazole (CAS 102151-45-1)
- 1-(4-methoxyphenyl)-4-methyl-1H-pyrazole (CAS 1252572-49-8)
- 5-(2-Methoxyphenyl)-1-methyl-1H-pyrazole (CAS 140226-35-3)
- 5-(3-Methoxyphenyl)-1-methylpyrazole (CAS 144026-75-5)
- 1-(2-Methoxyphenyl)-4-methyl-1H-imidazole (CAS 301828-44-4)
- 1-(4-Methoxyphenyl)-3-methyl-1H-pyrazole (CAS 68338-28-3)
- 1-(4-Methoxyphenyl)-4-methyl-1H-imidazole (CAS 301828-45-5)
- 4-(2-Methoxyphenyl)-3-methyl-1H-pyrazole (CAS 647825-31-8)
Recommended Standards
- 3-(4-(Dimethylamino)phenyl)-3-oxopropanenitrile (CAS 70988-03-3)
- 3-(5-Ethyl-4H-1,2,4-triazol-3-yl)aniline (CAS 915921-65-2)
- 3-(3,5-Dimethylisoxazol-4-yl)aniline (CAS 875628-76-5)
- 3-(Aminomethyl)-1-methylquinolin-2(1H)-one (CAS 941234-52-2)
- 6-Chloro-4-hydroxypicolinic acid (CAS 1060809-87-1)
- 2-(3-Acetyl-5-hydroxyphenyl)acetic acid (CAS 1393552-57-2)
- (αS)-α-[(3-Ethoxy-1-methyl-3-oxo-1-propenyl)amino]benzeneacetic Acid Monopotassium Salt (CAS 20421-26-5)
- 4-Bromomethyl-1-isopropoxy-2-nitrobenzene (CAS 1094273-14-9)
- 2-chloro-N-[phenyl(thien-2-yl)methyl]acetamide (CAS 923709-46-0)
- 2783-17-7 J3LM80W9NT 1,12-Dodecamethylenediamine Dodecamethylenediamine 1,12-Dodecanediamine 4-04-00-01376 (Beilstein Handbook Reference) BRN 1742765 1,12-Diamindodecane 1,12-Diaminododecane 1,12'-Dodecamethylenediamine Dodecyldiamine 1,12'-Dodecylenediamine EINECS 220-489-6 NSC 55050 NSC 59861 UNII-J3LM80W9NT (CAS 2783-17-7)
- Lactose Octaacetate (CAS 23973-20-8)
- (5-Cyclopropyl-4-methyl-4h-1,2,4-triazol-3-yl)methanamine dihydrochloride (CAS 1432681-51-0)
- 8-Methyl-4-nitroquinoline 1-oxide (CAS 14094-45-2)
- Heptapeptide-6 (CAS CATO-CPTD788823)
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