5-(4-Methoxy-2-methylphenyl)pyridine-3-carboxylic acid CAS 1261932-60-8
| CAS No. | 1261932-60-8 |
| Molecular Formula | C14H13NO3 |
| Molecular Weight | 243.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C14H13NO3, 5-(4-Methoxy-2-methylphenyl)pyridine-3-carboxylic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 243.26 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 5-(4-Methoxy-2-methylphenyl)pyridine-3-carboxylic acid (CAS 1261932-60-8), a certified reference material (molecular formula C14H13NO3, MW 243.26 g/mol) for analytical method development and quality control.
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.
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 | C14H13NO3 |
| Molecular Weight | 243.26 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
Related Methoxy Standards
- 3-[1-(2-Methoxy-ethyl)-5-oxo-pyrrolidin-3-yl]-3-oxo-propionic acid methyl ester (CAS 1083350-32-6)
- 4-methoxy-2-(pyridin-3-ylmethoxy)benzaldehyde (CAS 1151539-16-0)
- 2-Methoxy-4-(pyridin-2-ylmethoxy)benzaldehyde (CAS 1151539-21-7)
- 8-Methoxy-1,2,3,4-tetrahydro-5H-[1,4]diazepino[6,5-c]quinolin-5-one (CAS 1255781-71-5)
- 3-Methoxy-2-(pyridin-2-ylmethoxy)benzaldehyde (CAS 923706-86-9)
- 3-Methoxy-2-(pyridin-4-ylmethoxy)benzaldehyde (CAS 54477-09-7)
- 3-Methoxy-4-[(pyridin-4-yl)methoxy]benzaldehyde (CAS 309936-77-4)
- 4-Methoxy-3-(pyridin-2-ylmethoxy)benzaldehyde (CAS 923133-01-1)
Recommended Standards
- 1-[(tert-butoxy)carbonyl]-5-oxopiperidine-2-carboxylic acid (CAS 1260641-46-0)
- Ethyl 4-(5-hydroxypyridin-3-yl)benzoate (CAS 1261945-50-9)
- 5-(Benzyloxy)-6-methylpicolinic acid (CAS 1256808-85-1)
- 2-(3-Ethoxyphenyl)isonicotinic acid (CAS 1262005-38-8)
- Probenecid acyl-β-D-glucuronide (CAS 34017-15-7)
- N-(Ethoxycarbonyl)-DL-alanine (CAS 6318-52-1)
- 2-(4-Methoxyphenyl)-benzofuran-5-carboxylic acid (CAS 1154060-68-0)
- Acenaphthene (CAS 83-32-9)
- Ethyl 8-(4-ethoxyphenyl)-8-oxooctanoate (CAS 898757-57-8)
- 6-Bromo-2-(3,3-difluoroazetidin-1-yl)nitrobenzene (CAS 1713160-91-8)
- Azido-PEG8-propargyl (CAS 1196733-06-8)
- 9-Phenyl-9H-purine-6-carbonitrile (CAS 62196-39-8)
- Chloronitromethane (CAS 1794-84-9)
- Semaglutide Impurity 151 xTFA (CAS CATO-C4X-2226151)
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