2-[(1-Ethyl-1H-indol-3-yl)methylidene]-6-hydroxy-7-methyl-2,3-dihydro-1-benzofuran-3-one CAS 929339-41-3
| CAS No. | 929339-41-3 |
| Molecular Formula | C20H17NO3 |
| Molecular Weight | 319.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-[(1-Ethyl-1H-indol-3-yl)methylidene]-6-hydroxy-7-methyl-2,3-dihydro-1-benzofuran-3-one 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.
2-[(1-Ethyl-1H-indol-3-yl)methylidene]-6-hydroxy-7-methyl-2,3-dihydro-1-benzofuran-3-one (CAS 929339-41-3) is a high-purity analytical reference standard with the molecular formula C20H17NO3 and a molecular weight of 319.35 g/mol.
The molecular framework of 2-[(1-Ethyl-1H-indol-3-yl)methylidene]-6-hydroxy-7-methyl-2,3-dihydro-1-benzofuran-3-one (C20H17NO3) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
Physical & Chemical Properties
| Molecular Formula | C20H17NO3 |
| Molecular Weight | 319.35 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
Recommended Standards
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- Semaglutide Impurity 164 (CAS CATO-C4X-2226164)
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