Overview
Cyclopentanone (CAS 120-92-3 ), also known commercially as adipic ketone and by FEMA 3910 , is a cyclic ketone used as a flavoring and fragrance ingredient across food and personal care applications.
Its characteristic mint-like, earthy, and slightly woody odor profile makes it a valued building block for flavor and fragrance houses sourcing aroma chemicals for diverse formulations.
In food flavoring, this compound is used at trace levels to contribute nuanced background notes in savory, dairy, and roasted flavor systems. Fragrance formulators incorporate it into personal care products.
These applications include soaps, lotions, and hair care, where it adds depth to woody and green accords. It also functions as an intermediate in the synthesis of more complex aroma molecules.
This versatility makes it highly relevant to flavor and fragrance manufacturers operating their own chemical synthesis programs. The material is supplied as a clear liquid in drum and IBC quantities.
These formats are suited to industrial flavor and fragrance production. It is available in flavor-grade quality meeting FEMA and relevant purity specifications for use in food-contact applications.
Buyers should confirm compliance documentation, including CoA and purity levels, when sourcing for regulated flavor applications. This ensures the material meets all necessary safety and quality standards.
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Physical Properties
| Melting Point | -51.3 °C |
| Boiling Point | 130.6 °C @ Press: 760 Torr |
| Density | 0.94869 g/cm³ @ Temp: 20 °C |
| Flash Point | 87 °F |
| Appearance | colourless liquid |
| Color | Clear colorless to slightly yellow |
| Odor | Pleasant |
| Form | Liquid |
| Water Solubility | PRACTICALLY INSOLUBLE |
| Vapor Pressure | 11.5 hPa (20 °C) |
| Refractive Index | n 20/D 1.437(lit.) |
| Log P | 0.7 at 25℃ |
Safety & Handling
Warning GHS02 GHS07 Hazard Statements H226 Flammable liquid and vapor H302 Harmful if swallowed H315 Causes skin irritation H319 Causes serious eye irritation H332 Harmful if inhaled Precautionary Statements P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P233 Keep container tightly closed. P240 Ground and bond container and receiving equipment. P241 Use explosion-proof [electrical/ventilating/lighting/…] equipment. P242 Use non-sparking tools. P243 Take action to prevent static discharges. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/protective clothing/eye protection/face protection. P317 Get emergency medical help. P321 Specific treatment (see … on this label). P330 Rinse mouth. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P317 Get emergency medical help. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P332+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P370+P378 Use … for extinction. P403+P235 Store in a well-ventilated place. Keep cool. P303+P361+P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Trade & Regulatory
| HS Code | 29142990 |
| UN Number | 2245 |
| ADR Class | 3 |
| Packing Group | III |
| Storage Class | 3 - Flammable liquids |
| WGK (Germany) | 1 |
Other Names
Related Products
Chemical Properties
- CAS Number
- 120-92-3
- EC Number
- 204-435-9
- Mol. Weight
- 84.12
- HS Code
- 29142990
- Category
- Flavors & Fragrances