5-Ethyl-2-methoxypyridine CAS 847345-18-0
| CAS No. | 847345-18-0 |
| Molecular Formula | C8H11NO |
| Molecular Weight | 137.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 137.18 g/mol gives 5-Ethyl-2-methoxypyridine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-Ethyl-2-methoxypyridine (CAS 847345-18-0), molecular formula C8H11NO and molecular weight 137.18 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 5-Ethyl-2-methoxypyridine is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 137.18 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5-Ethyl-2-methoxypyridine 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 | C8H11NO |
| Molecular Weight | 137.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
- 2-Ethyl-3-methoxypyridine (CAS 105623-61-8)
- 3-Ethyl-5-methoxypyridine (CAS 1548687-97-3)
- 2-Ethyl-6-methoxypyridine (CAS 199273-56-8)
- 4-Ethyl-2-methoxypyridine (CAS 98593-17-0)
- 3-Methoxypyridine-2-carbaldehyde (CAS 1849-53-2)
- 2-Methoxypyridine-4-carbaldehyde (CAS 72716-87-1)
- 4-Methoxypyridine-3-carboxaldehyde (CAS 82257-15-6)
- 2-Methyl-4-methoxypyridine-n-oxide (CAS 6890-60-4)
Recommended Standards
- 5-Ethyl-1-methylpyridin-2(1H)-one (CAS 30277-96-4)
- 5-Ethyl-2-methylpyridine 1-oxide (CAS 768-44-5)
- 5-Ethoxy-2-methylpyridine (CAS 55270-48-9)
- 5-Ethyl-N-methylpyrimidin-2-amine (CAS 90008-44-9)
- 1-(2-Chloro-4-(methylsulfonyl)phenyl)piperidine-4-carboxamide (CAS 951625-07-3)
- Ethyl Imidazo[1,5-a]pyridine-1-carboxylate (CAS 119448-87-2)
- 6-(3-Aminopyrrolidin-1-yl)-1,2,4-triazine-3,5(2h,4h)-dione (CAS 1249530-93-5)
- 3-Bromo-2-(4-trifluoromethylphenyl)pyridine (CAS 1259091-98-9)
- 3-Chloro-6-(2,6-difluorophenyl)pyridazine (CAS 1154600-74-4)
- 2-Amino-8-D-Ribofuranosyl-imidazo[1,2-α]-1,3,5-triazin-4(8H)-one (CAS 67410-65-5)
- Ethanethioic Acid S-[3-[(1,3-Dihydro-1,3-dioxo-2H-isoindol-2-yl)oxy]propyl] Ester (CAS 1088-37-5)
- (S)-2-((4-fluorophenoxy)methyl)piperazine (CAS 2387559-93-3)
- L-Ascorbic acid 2-phosphate xsodium salt (CAS 109620-90-8)
- Semaglutide impurity 74 (CAS CATO-C4X-222674)
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