4-N-PROPYLANISOLE Chemical Properties

Melting point:

45-46 °C

Boiling point:

215 °C(lit.)

Density 

0.941 g/mL at 25 °C(lit.)

refractive index 

n20/D 1.504(lit.)

FEMA 

2930 | P-PROPYLANISOLE

Flash point:

194 °F

storage temp. 

Sealed in dry,Room Temperature

solubility 

Very slightly soluble in water, soluble in alcohol and oils

color 

Colorless liquid

Odor

at 10.00 % in dipropylene glycol. sweet anise licorice sassafrass fennel

Odor Type

anisic

JECFA Number

1244

LogP

3.66

CAS DataBase Reference

104-45-0(CAS DataBase Reference)

EPA Substance Registry System

p-Propylanisole (104-45-0)

Safety Information

Hazard Codes 

N

Risk Statements 

51/53

Safety Statements 

61

RIDADR 

UN3082 - class 9 - PG 3 - DOT NA1993 - Environmentally hazardous substances, liquid, n.o.s. HI: all (not BR)

WGK Germany 

2

RTECS 

BZ9450000

Toxicity

The acute oral LD₅₀ value was reported as 4.4 g/kg (3.38-5.72 g/kg) in the rat and as 7.30 g/kg (5.93-9.00 g/kg) in the mouse (Jenner, Hagan, Taylor, Cook & Fitzhugh, 1964). The acute dermal LD₅₀ value in rabbits was reported as > 5 g/kg (Levenstein, 1974).

MSDS

• Language:English Provider:SigmaAldrich

4-N-PROPYLANISOLE Usage And Synthesis

Chemical Properties

p-Propyl anisole has a characteristic anise-type odor with a sassafras undertone.

Occurrence

Reported found in katsuobishi (dried bonito).

Uses

The malerial is more stable in soap than Anethole. It finds some application in perfume compositions. particularly in low-cost masking odors for industrial purposes, detergent perfumes, household fragrances, etc. It is used in flavor compositions for Licor-ice, Rootbeer, Birchbeer, Spice blends, Vanilla imitation, Wintcrgreen, etc.

Definition

ChEBI: 1-Methoxy-4-propylbenzene is a member of methoxybenzenes.

Preparation

By partial hydrogenation of anethole in the presence of nickel at 60 to 95°C under pressure or under atmospheric pressure.

Aroma threshold values

Aroma characteristics at 1.0% EtoH: intense, lingering sweet anise, licorice with an herbal fennel nuance. It is reminiscent of black cough drops and root beer.

Taste threshold values

Taste characteristics at 1 to 15 ppm: intense herbal, fennel, sweetness reminiscent of black licorice, sassafras and anise. It has slight, spicy, basil-like nuances.

Synthesis Reference(s)

Tetrahedron Letters, 40, p. 6729, 1999 DOI: 10.1016/S0040-4039(99)01394-5

Safety Profile

Mildly toxic by ingestion. Mutation data reported. Combustible liquid. When heated to decomposition it emits acrid smoke and irritating fumes.

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