3-Ethynyl-5-methoxypicolinic acid CAS 2767259-24-3
| CAS No. | 2767259-24-3 |
| Molecular Formula | C9H7NO3 |
| Molecular Weight | 177.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 3-Ethynyl-5-methoxypicolinic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
CATO supplies 3-Ethynyl-5-methoxypicolinic acid (CAS 2767259-24-3), a certified reference material (molecular formula C9H7NO3, MW 177.16 g/mol) for analytical method development and quality control.
3-Ethynyl-5-methoxypicolinic acid (C9H7NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C9H7NO3 |
| Molecular Weight | 177.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2003 |
| Nitrogen Atoms | 1 |
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- 4-Ethynyl-2-methoxy-1-nitrobenzene (CAS 1260830-01-0)
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Recommended Standards
- 3-Cyano-5-methoxybenzoic acid (CAS 453566-61-5)
- 3-Hydroxy-1H-indole-2-carboxylic acid (CAS 6245-93-8)
- 3-Cyano-2-methoxybenzoic Acid (CAS 406938-74-7)
- 3-Methyl-2-oxo-2,3-dihydrobenzo[d]oxazole-5-carbaldehyde (CAS 76799-25-2)
- Omaveloxolone (CAS 1474034-05-3)
- (R)-5-Oxo-1,4-thiazepane-3-carboxylic acid (CAS 35082-57-6)
- 2-(4-Chlorobenzoyl)-3-({[3-(trifluoromethyl)phenyl]sulfanyl}methyl)-1-benzofuran (CAS 338411-49-7)
- tert-Butyl 4-carbamothioylpiperazine-1-carboxylate (CAS 196811-66-2)
- 8-Bromo-2-chloropyrido[3,4-b]pyrazin-7-ol (CAS 2377496-00-7)
- 5-Cyclopropyl-1-isopropyl-7-methyl-1H-indole-3-carbaldehyde (CAS 1350760-90-5)
- 4-Phenyl-1-(pyridin-3-yl)-1H-1,2,3-triazol-5-amine (CAS 890093-66-0)
- 2-Amino-4-(4-chlorophenyl)thiophene-3-carboxylic acid (CAS 893644-98-9)
- 2-(Difluoromethyl)-5-hydroxy-3-methoxypyridine-4-sulfonyl chloride (CAS 1806936-71-9)
- His-Aib-Semaglutide (CAS CATO-C4X-2226220)
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