CITRONELLYL ISOBUTYRATE Property

Melting point:

-22.4°C (estimate)

Boiling point:

253 °C(lit.)

Density 

0.875 g/mL at 25 °C(lit.)

vapor pressure 

1.9Pa at 25℃

FEMA 

2313 | CITRONELLYL ISOBUTYRATE

refractive index 

n20/D 1.442(lit.)

Flash point:

>230 °F

Odor

at 100.00 %. sweet fruity floral geranium tropical

Odor Type

fruity

biological source

synthetic

JECFA Number

71

LogP

5.415 at 25℃

EPA Substance Registry System

Citronellyl isobutyrate (97-89-2)

Safety

WGK Germany 

2

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P337+P313IF eye irritation persists: Get medical advice/attention.

CITRONELLYL ISOBUTYRATE Chemical Properties,Usage,Production

Aroma

CITRONELLYL ISOBUTYRATE has fresh, almost citrusy-rosy, intensely fruity and sweet odor, lighter than that of the n-Butyrate, not as warm or deep. Fruity-rosy, somewhat Bergamot-like taste of modest sweetness.

Uses in Perfume

CITRONELLYL ISOBUTYRATE can be used in perfume compositions for Geranium, Rose, Muguet, Freesia, Peony, Acacia, Lilac, Hyacinth, Bergamot, etc. and as a modifier for lower esters of Citronellol in floral and fruity-floral, stveet fragrance types. Used in flavor compositions for imitation Grape, Quince, Raspberry, Strawberry, Rose, and in a variety of "floral" flavor types. Concentration is usually only traces (a few ppm) in the finished product.

Chemical Properties

Citronellyl isobutyrate has a sweet, fruity and rose-like odor with a slightly sweet, apricot-like taste.

Physical properties

Colorless liquid. Almost insoluble in water and Propylene glycol, soluble in alcohol and oils. Sp.Gr. 0.88. B.P. 249°C.

Occurrence

Reported in Ceylon citronella oil.

Definition

ChEBI: Citronellyl isobutyrate is a carboxylic ester.

Preparation

By direct esterification of citronellol with isobutyric acid via azeotropic conditions or using isobutyric anhydride.

Taste threshold values

Taste characteristics at 25 ppm: waxy, fruity, green, with a citrus and tropical nuance.

Flammability and Explosibility

Not classified