2-Hydroxy-4-(methylcarbamoyl)benzoic acid CAS 1243280-42-3
| CAS No. | 1243280-42-3 |
| 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, 2-Hydroxy-4-(methylcarbamoyl)benzoic 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).
2-Hydroxy-4-(methylcarbamoyl)benzoic acid (CAS 1243280-42-3) is a high-purity analytical reference standard with the molecular formula C9H9NO4 and a molecular weight of 195.17 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.) | 1990 |
| Nitrogen Atoms | 1 |
Related Hydroxy Standards
- 2’-Hydroxy-4’-methyl-5’-nitroacetophenone (CAS 103440-91-1)
- 7-Hydroxy-5-oxo-1,2,3,5-tetrahydroindolizine-8-carboxylic acid (CAS 116993-46-5)
- 2-Hydroxy-5-(methylcarbamoyl)benzoic acid (CAS 1243280-47-8)
- 1-(4-Hydroxy-3-nitrophenyl)propan-2-one (CAS 1314934-53-6)
- (2S)-2-Hydroxy-2-(phenylformamido)acetic acid (CAS 142436-48-4)
- 2-Hydroxy-7-methoxy-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 17359-53-4)
- 1-(2-Hydroxy-3-methyl-5-nitrophenyl)ethanone (CAS 65348-98-3)
- 1-(2-Hydroxy-3-nitrophenyl)propan-1-one (CAS 91991-98-9)
Recommended Standards
- 6,8-Difluoro-1-methylquinolin-4(1H)-one (CAS 1210257-01-4)
- 1-(Difluoromethyl)-1h-indole-3-carbaldehyde (CAS 1206885-52-0)
- 6-Trifluoromethylsulfanyl-pyridazin-3-ylamine (CAS 1246466-65-8)
- 6,7-Difluoro-1-methoxyisoquinoline (CAS 1202006-83-4)
- 6-CHLORO-5-(TRIFLUOROMETHYL)PYRIDIN-2-OL 76041-77-5 AB82807 (CAS 76041-77-5)
- Methyl-d<SUB>3</SUB> Malonic acid-<SUP>13</SUP>C<SUB>4</SUB> (CAS 1215348-94-9)
- 1-amino-1-(2-fluorophenyl)propan-2-one hydrochloride (CAS 1909305-71-0)
- 2-((Tert-butoxycarbonyl)amino)cyclohexane-1-carboxylic acid (CAS 220760-49-6)
- 5-(3-Chlorophenyl)-2-oxo-1,2-dihydropyridine-3-carbonitrile (CAS 338954-76-0)
- 2-(2-Methylpiperidin-1-yl)ethanethioamide (CAS 1016805-62-1)
- 2-Bromo-1-(2,2-diethoxyethoxy)-3-fluorobenzene (CAS 286836-06-4)
- N-(Oxazol-2-ylmethyl)propan-2-amine (CAS 1398504-16-9)
- N-(3,4-Difluorophenyl)-2-((4-ethyl-5-(thiophen-2-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 565445-20-7)
- Semaglutide（sodium salt） (CAS CATO-C4X-222619)
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