Products Description of 4‑Chromanone (CAS#491‑37‑2)
4‑Chromanone is a yellowish‑brown crystalline or solid substance with the molecular formula C₉H₈O₂. It functions as a valuable synthetic precursor and intermediate for organic chemistry workflows, with prominent applications in pharmaceutical development. This molecule owns a bicyclic framework bearing a ketone functional group. Its core physical parameters include a molecular weight of 148.16 and a melting range of 35–38°C, and it can dissolve readily in organic solvents.
4-Chromanone Chemical Properties
| Melting point | 35-38 °C(lit.) |
| Boiling point | 127-128 °C13 mm Hg(lit.) |
| density | 1.1291 |
| refractive index | n20/D 1.575(lit.) |
| Fp | >230 °F |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| form | Crystalline Powder, Crystals or Low Melting Mass |
| color | White to yellow |
| Water Solubility | Slightly soluble in water. |
| BRN | 124652 |
| InChIKey | MSTDXOZUKAQDRL-UHFFFAOYSA-N |
| LogP | 1.990 (est) |
| CAS DataBase Reference | 491-37-2(CAS DataBase Reference) |
| NIST Chemistry Reference | 4H-1-Benzopyran-4-one, 2,3-dihydro-(491-37-2) |
| EPA Substance Registry System | 4H-1-Benzopyran-4-one, 2,3-dihydro- (491-37-2) |
| Hazard Codes | Xi |
| Risk Statements | 33-36/37/38 |
| Safety Statements | 24/25-36-26 |
| WGK Germany | 2 |
| RTECS | DJ2981225 |
| TSCA | Yes |
| HazardClass | IRRITANT |

Product Application of 4‑Chromanone (CAS#491‑37‑2)
This compound acts as a flexible synthetic precursor for constructing intricate molecular frameworks, among which many derivatives possess prospective antioxidant and anti‑inflammatory bio‑properties. Besides synthetic purposes, it is also adopted for experimental research targeting enzyme catalytic performance.

