(2-Methyl-2,3-dihydrobenzofuran-5-yl)boronic acid CAS 1028748-11-9
| CAS No. | 1028748-11-9 |
| Molecular Formula | C9H11BO3 |
| Molecular Weight | 177.99 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(2-Methyl-2,3-dihydrobenzofuran-5-yl)boronic acid (CAS 1028748-11-9) is a high-purity analytical reference standard with the molecular formula C9H11BO3 and a molecular weight of 177.99 g/mol.
Structurally, (2-Methyl-2,3-dihydrobenzofuran-5-yl)boronic acid (C9H11BO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.5, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 177.99 g/mol, it falls into the medium-molecular-weight range. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), (2-Methyl-2,3-dihydrobenzofuran-5-yl)boronic 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 | C9H11BO3 |
| Molecular Weight | 177.99 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) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
Related Methyl Standards
- 3-Oxo-2,3-dihydrobenzofuran-7-carboxylic acid (CAS 1344897-22-8)
- 2-Oxo-2,3-dihydrobenzofuran-4-carboxylic acid (CAS 199122-01-5)
- 2-Oxo-2,3-dihydrobenzofuran-6-carboxylic acid (CAS 855221-82-8)
- Methyl 2,3-dihydrobenzofuran-6-carboxylate (CAS 1083168-68-6)
- Methyl 2,3-dihydrobenzofuran-7-carboxylate (CAS 133844-95-8)
- 5-Methyl-2,3-dihydrobenzofuran-3-carboxylic acid (CAS 1499917-46-2)
- 2-(2,3-Dihydrobenzofuran-6-yl)acetic acid (CAS 152148-70-4)
- 7-Methyl-2,3-dihydrobenzofuran-2-carboxylic acid (CAS 17359-46-5)
Recommended Standards
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- (E)-(2-Methoxystyryl)boronic acid (CAS 1032737-74-8)
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- (4-(Allyloxy)phenyl)boronic acid (CAS 1117776-68-7)
- 2-Fluoro-4-(2,2,2-trifluoroethoxy)benzylamine (CAS 1504454-46-9)
- (1S,2S,4R)-4-Amino-2-fluorocyclohexan-1-ol (CAS 2711860-20-5)
- 3-(Hydroxymethyl)-1-methylquinolin-2(1H)-one (CAS 114561-15-8)
- tert-Butyl 5-methyl-2-phenyl-1H-indole-1-carboxylate (CAS 193810-86-5)
- 4,4-Difluoro-1-(fluoromethyl)cyclohexan-1-amine (CAS 2228506-41-8)
- 2-(2-(Diethylamino)ethyl)pyrimidine-4-carboxylic acid (CAS 1340067-25-5)
- N-[2-(1H-Indol-3-yl)ethyl]-4-methylpent-2-enamide (CAS 1020251-92-6)
- Ceftazidime trimer 2 (CAS CATO-C4X-121271)
- 2-(1,1-Difluoroethyl)-6-fluoropyridine (CAS 2567502-13-8)
- Insulin Degludec Impurity 15 (CAS CATO-C4X-215715)
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