(5-Methylbenzofuran-2-yl)boronic acid CAS 143381-72-0
| CAS No. | 143381-72-0 |
| Molecular Formula | C9H9BO3 |
| Molecular Weight | 175.98 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures (5-Methylbenzofuran-2-yl)boronic 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.
(5-Methylbenzofuran-2-yl)boronic acid (CAS 143381-72-0) is a high-purity analytical reference standard with the molecular formula C9H9BO3 and a molecular weight of 175.98 g/mol.
Structurally, (5-Methylbenzofuran-2-yl)boronic acid (C9H9BO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.5, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 175.98 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H9BO3 |
| Molecular Weight | 175.98 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) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
Related Methylbenzofuran Standards
- (7-Methylbenzofuran-5-yl)boronic acid (CAS 254886-15-2)
- 5-Methylbenzofuran-2-carboxylic Acid (CAS 10242-09-8)
- 2-Methylbenzofuran-6-carboxylic acid (CAS 133845-02-0)
- 7-methylbenzofuran-2-carboxylic acid (CAS 17349-64-3)
- 2-Methylbenzofuran-3-carboxylic acid (CAS 3265-74-5)
- 2-Methylbenzofuran-5-carboxylic acid (CAS 219763-06-1)
- 3-Methylbenzofuran-2-carboxylic Acid (CAS 24673-56-1)
- 3-Methylbenzofuran-5-carboxylic acid (CAS 501892-99-5)
Recommended Standards
- (1-Methyl-1H-benzo[d]imidazol-4-yl)boronic acid (CAS 1422972-14-2)
- (1-Methyl-1H-pyrrolo[2,3-b]pyridin-2-yl)boronic acid (CAS 1445801-58-0)
- (2-methyl-3H-benzimidazol-5-yl)boronic acid (CAS 1314358-26-3)
- (2-Methylimidazo[1,2-a]pyridin-6-yl)boronic acid (CAS 1446334-78-6)
- 5-Fluoro-1H-indol-1-amine (CAS 666828-90-6)
- 2-Chloro-N-(4-(pyrrolidine-1-carbonyl)phenyl)acetamide (CAS 908518-29-6)
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- 4-(3-Chloro-5-fluorophenyl)benzaldehyde (CAS 1381944-68-8)
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- 2-Acetamido-4-iodobenzoic acid (CAS 117324-10-4)
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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