5-hydroxybenzofuran-3-carboxylic acid CAS 29735-85-1
| CAS No. | 29735-85-1 |
| Molecular Formula | C9H14O4 |
| Molecular Weight | 186.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-hydroxybenzofuran-3-carboxylic acid is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 5-hydroxybenzofuran-3-carboxylic acid (CAS 29735-85-1), a certified reference material (molecular formula C9H14O4, MW 186.21 g/mol) for analytical method development and quality control.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, 5-hydroxybenzofuran-3-carboxylic acid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 186.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures 5-hydroxybenzofuran-3-carboxylic 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 | C9H14O4 |
| Molecular Weight | 186.21 g/mol |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1965 |
Related hydroxybenzofuran Standards
- 2-Ethyl-5-hydroxybenzofuran-3-carbaldehyde (CAS 825633-08-7)
- Methyl 4-hydroxybenzofuran-2-carboxylate (CAS 127724-13-4)
- 7-Acetyl-6-hydroxybenzofuran-3(2H)-one (CAS 1346151-74-3)
- Methyl 5-Hydroxybenzofuran-2-carboxylate (CAS 1646-28-2)
- Methyl 3-Hydroxybenzofuran-2-carboxylate (CAS 5117-55-5)
- Methyl 6-hydroxybenzofuran-3-carboxylate (CAS 862179-10-0)
- Methyl 7-hydroxybenzofuran-2-carboxylate (CAS 82788-41-8)
- 4-Hydroxybenzofuran-2-carboxylic acid (CAS 113511-42-5)
Recommended Standards
- 5H,6H,7H,8H,9H-pyrido[3,2-b]indol-9-one (CAS 198141-12-7)
- 5-Methoxy-2,2'-bipyridine (CAS 58792-50-0)
- 5-Cyclopropyl-3-phenyl-1,2,4-oxadiazole (CAS 884637-65-4)
- 5-Methoxy-2-methyl-1H-indole-3-carbonitrile (CAS 481668-37-5)
- 6-Bromo-2,3-dihydrobenzofuran (CAS 189035-22-1)
- (±)-3-Amino-1,2-propanediol (CAS 616-30-8)
- 2-(4-Methyl-2-nitrophenoxy)butanoic acid (CAS 869948-83-4)
- Methyl 5-((2-methyl-5-(3-(4-methyl-1H-imidazol-1-yl)-5-(trifluoromethyl)benzamido)benzyl)amino)-1H-pyrrolo[2,3-b]pyridine-2-carboxylate (CAS 1240322-54-6)
- 1-(4-(Tert-butyl)phenyl)-3-(1,3-dioxolan-2-yl)propan-1-one (CAS 842123-90-4)
- N-(2,4-dimethylphenyl)naphthalen-2-amine (CAS 306993-17-9)
- 2-Amino-2-methyl-6-(3-methyl-1h-pyrazol-1-yl)hexanamide (CAS 1339656-51-7)
- 2-(4-Aminophenyl)-6-cyclopropylpyrimidin-4(3h)-one (CAS 1284492-92-7)
- 4′-Bromomethoxystilbene (CAS 119421-16-8)
- Semaglutide Impurity 148 (CAS CATO-C4X-2226148)
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