4-(5-Ethoxy-4-methyl-1H-pyrazol-3-yl)pyridine CAS 90398-84-8
| CAS No. | 90398-84-8 |
| Molecular Formula | C11H13N3O |
| Molecular Weight | 203.24 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.
CATO supplies 4-(5-Ethoxy-4-methyl-1H-pyrazol-3-yl)pyridine (CAS 90398-84-8), a certified reference material (molecular formula C11H13N3O, MW 203.24 g/mol) for analytical method development and quality control.
The molecular framework of 4-(5-Ethoxy-4-methyl-1H-pyrazol-3-yl)pyridine (C11H13N3O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C11H13N3O |
| Molecular Weight | 203.24 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.) | 1982 |
| Nitrogen Atoms | 3 |
Related Ethoxy Standards
- 5-Ethoxy-1-(p-tolyl)-1H-1,2,3-triazole (CAS 103861-17-2)
- 4-Ethoxy-6-methylquinoline 1-oxide (CAS 105104-87-8)
- 2-Ethoxy-3-methylquinolin-4-ol (CAS 105677-47-2)
- 4-Ethoxy-6-methylquinolin-2(1H)-one (CAS 105908-27-8)
- 7-Ethoxy-4-methylquinolin-2(1H)-one (CAS 105908-28-9)
- Methyl 4-(2-Ethoxy-2-oxoethylamino)butanoate (CAS 1183267-12-0)
- 3-Ethoxy-1-phenyl-1H-pyrazol-5-amine (CAS 119224-99-6)
- 2-Ethoxy-4-(1H-pyrazol-1-yl)aniline (CAS 1341982-06-6)
Recommended Standards
- 4-(4-Ethoxyphenyl)-4-oxobutanenitrile (CAS 924871-32-9)
- 4-(Cyclopropylmethoxy)-1H-indazol-3-ylamine (CAS 927802-24-2)
- 4-(4-Ethoxyphenyl)-1H-imidazol-2-amine (CAS 76507-16-9)
- 4-(Isopropylamino)-2H-chromen-2-one (CAS 887575-53-3)
- 1-(1-phenylpropyl)piperazine (CAS 944070-19-3)
- tert-butyl (2S)-2-(bromomethyl)pyrrolidine-1-carboxylate (CAS 128542-75-6)
- tert-Butyl 3-((tert-butoxycarbonyl)amino)-3-formylazepane-1-carboxylate (CAS 2600792-68-3)
- 3-Fluoro-5-(trifluoromethoxy)aniline (CAS 1352999-96-2)
- 4,5-Dichloro-2-(2-methoxyethoxy)phenylboronic acid (CAS 1256354-99-0)
- 5-(p-Tolyl)pyridin-2-amine (CAS 503536-74-1)
- 5351-69-9 Hydrazinecarbothioamide, N-phenyl- 4-(Phenyl)thiosemicarbazide Semicarbazide, 4-phenyl-3-thio- AI3-00706 EINECS 226-329-1 NSC 58946 NSC 704 Phenyl thiosemicarbazide N-Phenylhydrazinecarbothioamide 4-Phenylthiosemicarbazide 4-Phenyl-3-thiosemicarbazide USAF EK-5426 USAF EL-45 (CAS 5351-69-9)
- 1-Propyl-4-vinyldecahydroquinolin-4-ol hydrochloride (CAS 62233-99-2)
- 2,5-Difluoro-4-methylbenzene-1-sulfonamide (CAS 1394040-77-7)
- Peptide 437 (CAS CATO-CPTD788437)
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