5-(2-Methoxyphenyl)-1-methyl-1H-pyrazole CAS 140226-35-3
| CAS No. | 140226-35-3 |
| Molecular Formula | C11H12N2O |
| Molecular Weight | 188.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
5-(2-Methoxyphenyl)-1-methyl-1H-pyrazole (CAS 140226-35-3) is a high-purity analytical reference standard with the molecular formula C11H12N2O and a molecular weight of 188.23 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 5-(2-Methoxyphenyl)-1-methyl-1H-pyrazole is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 188.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.) | 1997 |
| 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-(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)
- 3-(4-Methoxyphenyl)-1-methyl-1H-pyrazole (CAS 73387-57-2)
- 4-(2-Methoxyphenyl)-3-methyl-1H-pyrazole (CAS 647825-31-8)
Recommended Standards
- 3-(Benzyloxy)-1-methyl-1H-pyrazole (CAS 1401812-32-5)
- 6-(2-Aminoethoxy)quinoline (CAS 1403390-06-6)
- 5'-Amino-1'-methylspiro[cyclopropane-1,3'-indolin]-2'-one (CAS 1399657-25-0)
- 3-Ethyl-4-(pyridin-2-yl)-1H-pyrazol-5-amine (CAS 1404449-15-5)
- 5-Bromo-N-methyl-N-(1-methyl-1H-1,2,3,4-tetrazol-5-yl)pyridin-2-amine (CAS 1428960-81-9)
- 2-Chlorobut-2-enedioic acid (CAS 19071-21-7)
- 2-Cyclopentyl-2-methylpropanoic acid (CAS 802918-34-9)
- N-(2-Fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl)cyclohexanamine (CAS 2377612-04-7)
- 1-((3,4,5-Trifluorobenzyl)amino)propan-2-ol (CAS 1310202-03-9)
- 5-Chlorobenzofuroxan (CAS 17348-69-5)
- 3-[(3-Bromo-4-Methoxyphenyl)Methyl]-5-Fluoro-1H-Pyrimidine-2,4-Dione (CAS 102613-16-1)
- 2-Acetamido-N-(4-methoxyphenyl)-3-phenylpropanamide (CAS 6952-22-3)
- 3-Methyl-2-(2-morpholino-2-oxoethoxy)benzaldehyde (CAS 1427023-50-4)
- Semaglutide impurity 81 (CAS CATO-C4X-222681)
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