| Chemical Formula | C5H8O |
| Molecular Weight | 84.12 |
| Structural Formula |  |
| Density | 0.951 g/mL at 25 °C (lit.) |
| Melting Point | -51 °C (lit.) |
| Boiling Point | 130-131 °C (lit.) |
| Flash Point | 87°F |
| Water Solubility | PRACTICALLY INSOLUBLE |
| Vapor Pressure | 11.5 hPa (20 °C) |
| Vapor Density | 2.97 (vs air) |
| JECFA Number | 1101 |
| Solubility | 9.18g/l Slightly soluble |
| Refractive Index | n20/D 1.437(lit.) |
| Storage Conditions | Store below +30°C. |
| Stability | Stable. Incompatible with strong reducing agents, strong oxidizing agents, strong bases. |
| Appearance | Solid |
| Color | Clear colorless to slightly yellow |
| Odor | Pleasant |
| Merck | 14,2743 |
| BRN | 605573 |
| Physicochemical Properties | Colorless oily liquid with a pleasant minty odor. Melting point -58.2°C, boiling point 130.6°C, relative density 0.9509 (20°C), refractive index 1.4366, flash point 29.82°C. Slightly soluble in water. Easily polymerizes, especially in the presence of trace amounts of acid. |
Main Uses:
Cyclopentanone has a wide range of downstream applications, including fragrances, pharmaceuticals, pesticides, rubber synthesis, electronic chemical solvents, and other fields.Cyclopentanone is an important organic chemical raw material used to produce chemicals such as bromocyclopentane and 1-cyclohexyl-5-(4-chlorobutyl)tetrazole; in the fragrance industry, cyclopentanone is a raw material for preparing new fragrances like jasmone, dihydrojasmone methyl ester, and michelia ketone; in the pharmaceutical industry, cyclopentanone is a key raw material for preparing buspirone (an anti-anxiety drug), synthesizing paclitaxel analogs (anticancer drugs), and Remdesivir precursors (anti-COVID-19 drugs).
Cyclopentanone has good solubility for various resins and is widely used as a solvent in the rubber and electronics industries. High-purity cyclopentanone can be used for cleaning semiconductor photoresists, ensuring the precision of chip manufacturing.
