2-Acetyl-5-methoxybenzofuran CAS 21587-39-3
| CAS No. | 21587-39-3 |
| Molecular Formula | C11H10O3 |
| Molecular Weight | 190.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 2-Acetyl-5-methoxybenzofuran (CAS 21587-39-3), a certified reference material (molecular formula C11H10O3, MW 190.20 g/mol) for analytical method development and quality control.
2-Acetyl-5-methoxybenzofuran (C11H10O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 2-Acetyl-5-methoxybenzofuran 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 | C11H10O3 |
| Molecular Weight | 190.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
Related Acetyl Standards
- 1-(5-Methoxybenzofuran-3-yl)ethan-1-one (CAS 17249-69-3)
- 1-(4-Methoxybenzofuran-2-yl)ethanone (CAS 59445-59-9)
- 1-(4-Methoxybenzofuran-5-yl)ethanone (CAS 52055-86-4)
- 1-(6-Methoxybenzofuran-2-yl)ethan-1-one (CAS 52814-92-3)
- 1-(6-Methoxybenzofuran-5-yl)ethan-1-one (CAS 63272-70-8)
- 2-Acetyl-7-methoxybenzofuran (CAS 43071-52-9)
- 7-Methoxybenzofuran-2-carboxamide (CAS 53020-46-5)
- 3-Methoxybenzofuran-2-carboxylic acid (CAS 104315-56-2)
Recommended Standards
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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
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