3-PENTEN-2-ONE Chemical Properties

Boiling point:

121-124 °C (lit.)

Density 

0.862 g/mL at 25 °C (lit.)

vapor pressure 

760 mm Hg ( 121 °C)

refractive index 

n20/D 1.437(lit.)

FEMA 

3417 | 3-PENTEN-2-ONE

Flash point:

70 °F

storage temp. 

Sealed in dry,2-8°C

solubility 

Chloroform (Sparingly), Ethyl Acetate (Slightly)

form 

Liquid

color 

Clear colorless

Odor

at 0.10 % in dipropylene glycol. fruity acetone phenolic fishy

Odor Type

fruity

Water Solubility 

Slightly soluble in Water

JECFA Number

1124

BRN 

1633505

Stability:

Stable. Flammable. Incompatible with strong oxidizing and strong reducing agents, strong acids, strong bases.

LogP

0.56

EPA Substance Registry System

3-Penten-2-one (625-33-2)

Safety Information

Hazard Codes 

F,Xn

Risk Statements 

11-21-36/37/38

Safety Statements 

16-26-33-36/37/39

RIDADR 

UN 1992 3/PG 2

WGK Germany 

3

RTECS 

SB3850000

F 

10-19

TSCA 

Yes

HazardClass 

3

PackingGroup 

II

HS Code 

29141990

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

3-PENTEN-2-ONE Usage And Synthesis

Chemical Properties

colourless liquid with a pungent odour

Chemical Properties

3-Penten-2-one has a fruity odor becoming pungent on storage.

Occurrence

Reported found among the volatile components of roasted peanuts; also in cranberry, mango, bilberry, rum, cocoa, coffee, tea, roasted filberts, roasted peanuts, potato chips, lingonberry, strawberry fruit and jam, tomato, wheat bread, parmesan cheese, yogurt, fatty fish, passion fruit, beans, mango, tamarind, rice, Bourbon vanilla, endive, shrimp, katsubushi and buckwheat.

Uses

3-Penten-2-one was used in the synthesis of the alkaloids (+/-)-senepodine G and (+/-)-cermizine C.

Preparation

From 4-hydroxy-pentan-2-one refluxed with oxalic acid.

Definition

ChEBI: An enone that is pent-2-ene in which the two methylene hydrogens have been replaced by an oxo group.

Taste threshold values

Taste characteristics at 10 ppm: musty, stale water and phenolic with a fishy and shellfish nuance.

General Description

3-Penten-2-one is volatile compound present in berry fruit of two Aronia melanocarpa genotypes. Urinary 3-penten-2-one is a useful biomarker for increased accumulation of acetaldehyde during abnormal metabolic stress.

Biochem/physiol Actions

3-Penten-2-one inhibits nitric oxide production and inducible nitric oxide synthase expression via heme oxygenase-1 expression in lipopolysaccharide-activated RAW264.7 macrophages.

3-PENTEN-2-ONE(625-33-2)Related Product Information

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