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Cyclopentanone

CAS Number
120-92-3
EC Number
204-435-9
Chemical Formula
C5H8O
Molecular Weight
84.12 g/mol

Description

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. Contact us for supply of Cyclopentanone Request Quote

Other Names (Synonyms)

Adipic ketone | Dumasin | Adipin keton | 220W81TN3S

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point-51.3 °C
Boiling Point130.6 °C @ Press: 760 Torr
Density0.94869 g/cm³ @ Temp: 20 °C
Flash Point87 °F
Appearancecolourless liquid
ColorClear colorless to slightly yellow
OdorPleasant
FormLiquid
Water SolubilityPRACTICALLY INSOLUBLE
Vapor Pressure11.5 hPa (20 °C)
Refractive Indexn 20/D 1.437(lit.)
Log P0.7 at 25℃

Safety & Handling

Warning
GHS02· FlammableGHS07· Irritant

Hazard Statements

H226Flammable liquid and vapor
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H332Harmful if inhaled

Precautionary Statements

P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P233Keep container tightly closed.
P240Ground and bond container and receiving equipment.
P241Use explosion-proof equipment.
P242Use non-sparking tools.
P243Take action to prevent static discharges.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P317Get emergency medical help.
P321Specific treatment (see … on this label).
P330Rinse mouth.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P317Get emergency medical help.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.
P378Use … for extinction.
P235Store in a well-ventilated place. Keep cool.
P353IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29142990
UN Number2245
ADR Class3
Packing GroupIII
Storage Class3 - Flammable liquids
WGK (Germany)1