5-(Methoxycarbonyl)-4-methylnicotinic acid CAS 18181-21-0
| CAS No. | 18181-21-0 |
| Molecular Formula | C9H9NO4 |
| Molecular Weight | 195.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C9H9NO4, 5-(Methoxycarbonyl)-4-methylnicotinic acid contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 195.17 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
5-(Methoxycarbonyl)-4-methylnicotinic acid (CAS 18181-21-0) is a high-purity analytical reference standard with the molecular formula C9H9NO4 and a molecular weight of 195.17 g/mol.
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.
CATO manufactures 5-(Methoxycarbonyl)-4-methylnicotinic 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.
Physical & Chemical Properties
| Molecular Formula | C9H9NO4 |
| Molecular Weight | 195.17 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 1 |
Related Methoxycarbonyl Standards
- 5-(Methoxycarbonyl)pyridine-2-acetic Acid (CAS 1000524-56-0)
- 2-(Methoxycarbonyl)-6-methylisonicotinic acid (CAS 1137881-93-6)
- 6-(Methoxycarbonyl)-4-methylpicolinic acid (CAS 1393569-96-4)
- 2-[6-(methoxycarbonyl)pyridin-3-yl]acetic acid (CAS 154586-80-8)
- 5-(Methoxycarbonyl)-6-methylpicolinic acid (CAS 178932-24-6)
- 2-[(methoxycarbonyl)amino]benzoic acid (CAS 6268-38-8)
- 3-[(methoxycarbonyl)amino]benzoic acid (CAS 209551-66-6)
- 4-(Methoxycarbonyl)-6-methylpicolinic acid (CAS 597561-40-5)
Recommended Standards
- 7-Methyl-5-nitro-2,3-dihydrobenzo[b][1,4]dioxine (CAS 1809036-19-8)
- 4,6-Difluoro-1-methyl-1H-indole-5-carbaldehyde (CAS 1823324-74-8)
- 5-Oxo-4h,5h,6h,7h,8h-furo[3,2-b]azepine-3-carboxylic acid (CAS 180340-64-1)
- 3,6-Difluoro-8-methoxyquinoline (CAS 1823901-81-0)
- 5-Amino-6-methoxy-2,3-dihydro-1H-inden-1-one (CAS 1116359-45-5)
- tert-Butyl 3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propanoate (CAS 1220967-98-5)
- 1-(2-Chloro-6-fluorobenzyl)-1,2-dihydro-3h-1,2,4-triazol-3-imine (CAS 832738-10-0)
- Levocarnitine Impurity N8 (CAS 51499-71-9)
- 1-(23-Amino-3,6,9,12,15,18,21-heptaoxatricosyl)-1H-pyrrole-2,5-dione (CAS 1629740-94-8)
- 2-(4-(1,3-Dioxoisoindolin-2-yl)phenyl)propanoic acid (CAS 59430-61-4)
- [1,2,5]Thiadiazolo[3,4-b]pyrazine (CAS 51097-07-5)
- 5-(tert-Butylthio)-2-methoxy-3-methylpyridine (CAS 1355226-32-2)
- Ethyl 2-oxo-2-((5-(trifluoromethyl)-1,3,4-thiadiazol-2(3H)-ylidene)amino)acetate (CAS 519170-72-0)
- Insulin Degludec Impurity 14 (CAS CATO-C4X-215714)
Why CATO?
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