3-(1H-Benzo[d]imidazol-2-yl)-6-chloro-4H-chromen-4-one CAS 293740-39-3
| CAS No. | 293740-39-3 |
| Molecular Formula | C16H9ClN2O2 |
| Molecular Weight | 296.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-(1H-Benzo[d]imidazol-2-yl)-6-chloro-4H-chromen-4-one.
3-(1H-Benzo[d]imidazol-2-yl)-6-chloro-4H-chromen-4-one (CAS 293740-39-3), molecular formula C16H9ClN2O2 and molecular weight 296.71 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-(1H-Benzo[d]imidazol-2-yl)-6-chloro-4H-chromen-4-one (C16H9ClN2O2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
As a certified reference material (CRM), 3-(1H-Benzo[d]imidazol-2-yl)-6-chloro-4H-chromen-4-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.
Physical & Chemical Properties
| Molecular Formula | C16H9ClN2O2 |
| Molecular Weight | 296.71 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- 5-(Azepan-1-yl)-7-chloro-4-nitrobenzo[c][1,2,5]oxadiazole (CAS 310451-77-5)
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