3-oxobenzofuran-5-carboxylic acid CAS 74815-32-0
| CAS No. | 74815-32-0 |
| Molecular Formula | C9H12O4 |
| Molecular Weight | 184.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
3-oxobenzofuran-5-carboxylic acid (CAS 74815-32-0) is a high-purity analytical reference standard with the molecular formula C9H12O4 and a molecular weight of 184.19 g/mol.
Based on its molecular formula C9H12O4, 3-oxobenzofuran-5-carboxylic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 184.19 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).
As a certified reference material (CRM), 3-oxobenzofuran-5-carboxylic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C9H12O4 |
| Molecular Weight | 184.19 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
Related oxobenzofuran Standards
Recommended Standards
- 3-Morpholin-4-ylpyrrolidine-2,5-dione (CAS 691380-55-9)
- 3-Quinolinecarbonitrile, 1,4-dihydro-6-methyl-4-oxo- (CAS 71083-62-0)
- 3-Methyl-1-oxa-3,8-diazaspiro[4.5]decane-2,4-dione (CAS 26733-65-3)
- 4-((Dimethylamino)methyl)-5-methylisoxazole-3-carboxylic acid (CAS 893749-96-7)
- 4-(2-Methoxyphenyl)-1,2,3,6-tetrahydropyridine (CAS 154422-95-4)
- 6-Chloro-2-(5-ethyl-2-thienyl)quinoline-4-carbonyl chloride (CAS 1160263-09-1)
- 5-Iodo-7-nitroquinolin-8-ol (CAS 18472-05-4)
- 4-Chloro-5-methoxypyridin-3-amine (CAS 1105675-66-8)
- N-Cyclohexylimidodicarbonimidic diamide (CAS 15233-32-6)
- 2-Bromo-1-(1-ethyl-1H-pyrazol-4-yl)ethan-1-one (CAS 1623018-75-6)
- N-(2-Carboxybenzoyl)-(+)-10,2-camphorsultam (CAS 1820570-99-7)
- 4-(3,4-Difluorobenzoyl)-8-propyl-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid (CAS 1326813-21-1)
- Fludioxonil (CAS 131341-86-1)
- Peptide 6A (H-6905.0005) (CAS 73549-32-3)
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