5-Carbamoyl-2-methoxybenzoic acid CAS 89366-41-6
| CAS No. | 89366-41-6 |
| Molecular Formula | C9H9NO4 |
| Molecular Weight | 195.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Carbamoyl-2-methoxybenzoic acid (CAS 89366-41-6), molecular formula C9H9NO4 and molecular weight 195.17 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5-Carbamoyl-2-methoxybenzoic acid (C9H9NO4) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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 | 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.) | 1982 |
| Nitrogen Atoms | 1 |
Related Carbamoyl Standards
- 4-Carbamoyl-3-methoxybenzoic acid (CAS 773056-89-6)
- 4-Carbamoyl-2-methoxyphenylboronic acid (CAS 1451392-06-5)
- 4-Carbamoyl-3-ethyl-5-methyl-1h-pyrrole-2-carboxylic acid (CAS 1423029-63-3)
- Methyl 4-carbamoyl-2-methylbenzoate (CAS 2089651-31-8)
- 2-Carbamoyl-5-fluorobenzoic Acid (CAS 1310532-40-1)
- Ethyl 4-carbamoyl-1-methyl-1H-pyrazole-3-carboxylate (CAS 1174861-91-6)
- Methyl 3-(4-carbamoyl-1H-pyrazol-1-yl)propanoate (CAS 1245807-81-1)
- Methyl 3-(5-carbamoyl-1h-pyrazol-1-yl)propanoate (CAS 1245807-93-5)
Recommended Standards
- 5-Aminoisophthalic Acid Monomethyl Ester (CAS 28179-47-7)
- 5-Methoxy carbonyl salicylamide (CAS 63874-38-4)
- 5-Amino-2-(carboxymethyl)benzoic acid (CAS 22901-69-5)
- 5-nitro-2-(prop-2-en-1-yloxy)phenol (CAS 21837-34-3)
- 2-(Cyclopropylsulfonyl)pyridin-3-amine (CAS 1780894-00-9)
- 3,4-Dichloro-3-(3-pyrrolinomethyl) benzophenone (CAS 898749-54-7)
- 5-methoxy-2,3-dihydro-1H-pyrrolo[2,3-b]pyridine (CAS 1060803-15-7)
- 3-Methyl-1-(pyridin-2-ylmethyl)-1h-pyrazole-5-carboxylic acid (CAS 1522841-47-9)
- Ethanol, 2-amino-, phosphate (CAS 29868-05-1)
- Methyl 4-bromo-3-iodo-1H-indole-6-carboxylate (CAS 1352395-09-5)
- (E)-4,4,5,5-Tetramethyl-2-(2-methylpent-1-en-1-yl)-1,3,2-dioxaborolane (CAS 2566594-86-1)
- Balsalazide Impurity 3 (CAS CATO-C4X-15543)
- 3-Hydroxy-4-(((tetrahydro-2H-thiopyran-4-yl)methyl)amino)butanoic acid (CAS 1699397-79-9)
- Polymyxin B nonapeptide (CAS 86408-36-8)
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