trans-2-Pentenal Chemical Properties

Melting point:

-101.15°C (estimate)

Boiling point:

80-81 °C/160 mmHg (lit.)

Density 

0.86 g/mL at 25 °C (lit.)

refractive index 

n20/D 1.440-1.446(lit.)

FEMA 

3218 | 2-PENTENAL

Flash point:

73 °F

storage temp. 

0-6°C

solubility 

Chloroform (Soluble), Ethyl Acetate (Slightly), Methanol (Slightly)

form 

Liquid

color 

Clear colorless to yellow

Odor

at 1.00 % in dipropylene glycol. pungent green fruity apple orange tomato

Odor Type

green

Water Solubility 

Insoluble

Sensitive 

Air Sensitive

BRN 

1719742

Stability:

Light Sensitive

LogP

1.281 (est)

CAS DataBase Reference

1576-87-0(CAS DataBase Reference)

NIST Chemistry Reference

2-pentenal(E)(1576-87-0)

Safety Information

Hazard Codes 

Xi,F

Risk Statements 

10-36/37/38-11

Safety Statements 

29-37/39-26-16

RIDADR 

UN 1989 3/PG 2

WGK Germany 

3

RTECS 

SB1560000

F 

10

HazardClass 

3

PackingGroup 

II

HS Code 

29121900

Toxicity

mic-sat 50 ng/plate EMMUEG 19,338,1992

MSDS

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

trans-2-Pentenal Usage And Synthesis

Chemical Properties

CLEAR COLORLESS TO YELLOW LIQUID

Uses

(E)-2-Pentenal, is a flavor volatile found in tomato, virgin olive oil and sardine.

Definition

ChEBI: (E)-2-pentenal is a 2-pentenal in which the double bond has (E)-configuration. It is found in cigarette smoke, virgin olive oil, and milk. It has a role as a plant metabolite.

General Description

Trans-2-Pentenal (pentenal) is an α,β-unsaturated aldehyde that increases [Ca²⁺] in cultured neonatal rat trigeminal ganglion (TG) neurons. The gas-phase reactions of NO₃ radicals with pentenal in pure N₂, using a relative rate technique, was studied.

Safety Profile

Mutation data reported. When heated to decompositionit emits acrid smoke and irritating vapors.

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