4-Ethoxy-3-methylpyridine 1-oxide CAS 90087-16-4
| CAS No. | 90087-16-4 |
| Molecular Formula | C11H7N3OSe |
| Molecular Weight | 276.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-Ethoxy-3-methylpyridine 1-oxide (CAS 90087-16-4), a certified reference material (molecular formula C11H7N3OSe, MW 276.15 g/mol) for analytical method development and quality control.
4-Ethoxy-3-methylpyridine 1-oxide (C11H7N3OSe) contains a nitrogen-containing heterocyclic scaffold, 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. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
As a certified reference material (CRM), 4-Ethoxy-3-methylpyridine 1-oxide 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 | C11H7N3OSe |
| Molecular Weight | 276.15 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 3 |
Related Ethoxy Standards
- 2-Ethoxy-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)benzaldehyde (CAS 2098425-81-9)
- 3-Ethoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzaldehyde (CAS 887921-58-6)
- 2-(3-Ethoxy-4,5-dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2377609-57-7)
- 2-(4-Ethoxy-3-ethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2121514-94-9)
- 4-Ethoxy-3-iodobenzaldehyde (CAS 184033-45-2)
- 2-Ethoxy-5-iodobenzaldehyde (CAS 2167581-54-4)
- 3-Ethoxy-4-iodobenzaldehyde (CAS 916344-27-9)
- 2-(3-Ethoxy-2-(ethoxycarbonyl)-3-oxopropyl)malonic acid (CAS 2121-66-6)
Recommended Standards
- 4-Bromo-N-cyclopropylbenzenesulfonamide (CAS 331950-30-2)
- 4-Isopropoxy-2,3,5,6-tetrafluorobenzotrifluoride (CAS 85623-66-1)
- 4-Amino-6-bromo-3,4-dihydro-2H-S,S-dioxothiochromene (CAS 916420-34-3)
- 5-Bromo-1-(methylsulfonyl)indoline (CAS 446054-18-8)
- 4-nitrobenzene-<SUP>13</SUP>C<SUB>6</SUB>-hydrazine (CAS 1173019-12-9)
- 2-Ethoxy-4-formylphenyl propanoate (CAS 159661-85-5)
- 1-3:1-4 β-Glucotetraose (C) (CAS 103762-93-2)
- 4-Bromo-1-chloro-2-(trifluoromethoxy)benzene (CAS 406232-79-9)
- 4-((4-(Benzo[d]thiazol-2-yl)piperidin-1-yl)sulfonyl)aniline (CAS 898652-08-9)
- Methyl (E)-2-(2-chloro-1-methyl-1H-indol-4-yl)-3-methoxyacrylate (CAS 2767648-71-3)
- 3-Phenyl-2-propenylbeta-D-glucopyranoside (CAS 69306-80-5)
- 1-(3-(Methylsulfonyl)-5-(trifluoromethyl)pyridin-2-yl)ethan-1-one (CAS 1400872-34-5)
- 6-(Dimethylamino)naphthalene-2-sulfonic acid (CAS 34322-51-5)
- Semaglutide Impurity 180 (CAS CATO-C4X-2226180)
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