(5-Bromobenzofuran-3-yl)methanol CAS 137242-42-3
| CAS No. | 137242-42-3 |
| Molecular Formula | C9H7BrO2 |
| Molecular Weight | 227.05 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.
(5-Bromobenzofuran-3-yl)methanol (CAS 137242-42-3) is a high-purity analytical reference standard with the molecular formula C9H7BrO2 and a molecular weight of 227.05 g/mol.
Structurally, (5-Bromobenzofuran-3-yl)methanol (C9H7BrO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 227.05 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), (5-Bromobenzofuran-3-yl)methanol 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 | C9H7BrO2 |
| Molecular Weight | 227.05 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | Br-containing |
Related Bromobenzofuran Standards
- (6-Bromobenzofuran-2-yl)methanol (CAS 1089682-06-3)
- (6-Bromobenzofuran-3-yl)methanol (CAS 1426082-35-0)
- (7-Bromobenzofuran-2-yl)methanol (CAS 1467056-12-7)
- (4-Bromobenzofuran-2-yl)methanol (CAS 177735-23-8)
- (7-Bromobenzofuran-5-yl)methanol (CAS 286836-24-6)
- (5-Bromobenzofuran-2-yl)methanamine (CAS 165736-51-6)
- 5-Bromobenzofuran-3-carbaldehyde (CAS 1194376-28-7)
- 7-Bromobenzofuran-3-carbaldehyde (CAS 1368142-94-2)
Recommended Standards
- 5-iodo-1,4-dimethyl-triazole (CAS 1346818-62-9)
- 5-Bromo-6-methylphthalide (CAS 1374574-10-3)
- 8-Bromochroman-3-one (CAS 133118-80-6)
- 7-Bromo-4-methylindoline (CAS 1388026-20-7)
- Dimethyl 1-isopropyl-3-methylcyclopentane-1,3-dicarboxylate (CAS 1961237-14-8)
- 3-Methyl-2-phenylbenzo[f]quinoxaline (CAS 10023-43-5)
- (2E)-3-(5-chlorothien-2-yl)acrylic acid (CAS 41914-51-6)
- 2-Bromo-4-chloro-3-iodopyridine (CAS 1070870-41-5)
- Olanzapine Impurity 32 (CAS CATO-C4X-117832)
- 2-Azido-N-benzylacetamide (CAS 116433-53-5)
- 2-(3,4-Dichlorophenyl)-4H-benzo[d][1,3]oxazin-4-one (CAS 82525-41-5)
- (5-((1-Methoxypropan-2-yl)oxy)pyridin-3-yl)boronic acid (CAS 1350512-44-5)
- N-(6-(tert-Butyl)-4-cyclopropoxypyridin-3-yl)methanesulfonamide (CAS 1243283-38-6)
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