Isopentyl isobutyrate Chemical Properties

Melting point:

-73°C (estimate)

Boiling point:

169-171 °C(lit.)

Density 

0.856 g/mL at 25 °C(lit.)

refractive index 

n20/D 1.406(lit.)

FEMA 

3507 | 3-METHYLBUTYL 2-METHYLPROPANOATE

Flash point:

129 °F

form 

clear liquid

color 

Colorless to Almost colorless

Odor

at 100.00 %. fruity ethereal tropical green grape cherry unripe banana apple cocoa

Odor Type

fruity

Water Solubility 

Insoluble in water, miscible with alcohol, solubie in essential oils, perfume and flavor materials.

JECFA Number

49

Stability:

Stable. Combustible. Incompatible with strong oxidizing agents, strong reducing agents.

LogP

3.17

CAS DataBase Reference

2050-01-3(CAS DataBase Reference)

NIST Chemistry Reference

Iso-amyl iso-butyrate(2050-01-3)

EPA Substance Registry System

Isopentyl isobutyrate (2050-01-3)

Safety Information

Risk Statements 

10

Safety Statements 

16

RIDADR 

UN 2620 3/PG 3

WGK Germany 

3

TSCA 

Yes

HazardClass 

3

PackingGroup 

III

HS Code 

29159000

MSDS

• Language:English Provider:3-Methylbutyl 2-methylpropanoate
• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

Isopentyl isobutyrate Usage And Synthesis

Chemical Properties

colourless liquid with a fruity smell

Chemical Properties

3-Methylbutyl-2-methylpropionate has a fruity odor with an undertone reminiscent of apricot and pineapple.

Occurrence

Reported found in banana, feyoa fruit (Feijoa sellowiana), grapes, melon, papaya, corn oil, beer, hop oil, whiskies, white wine, honey, jackfruit, cherimoya and Roman chamomile oil.

Uses

Finds limited use in perfumery as a modifier for Amyl phenylacetate and other heavy esters, or as a trace component topnote item. Extensively used in flavor compositions for introduction of light, fruity notes: Apple, Apricot, Banana, Berry, Peach, etc.

Preparation

By passing vapors of isobutyl alcohol and isoamyl alcohol over an Ag-activated Cu-MnO catalyst.

Definition

ChEBI: A fatty acid ester obtained by the formal condensation of isoamylol with isobutyric acid.

Aroma threshold values

Detection: 14 ppb

Taste threshold values

Taste characteristics at 40 ppm: sweet, fruity, green and fatty with a berry nuance.

Isopentyl isobutyrate(2050-01-3)Related Product Information

• Isobutyl methacrylate
• Isoamyl nitrite
• Isoamyl acetate
• Isoamyl o-hydroxybenzoate
• Butyl propionate
• tert-Butyl methacrylate
• Butyl methacrylate
• POLY(N-BUTYL METHACRYLATE)
• Isoamyl benzoate
• 3-Methylbutyl 3-methylbutanoate
• Isobutyric acid
• TERT-BUTYL PROPIONATE
• 2,2-Bis(hydroxymethyl)propionic acid
• Isoamyl butyrate
• ISOAMYL NITRATE
• Phenoxyethyl isobutyrate
• LACTIC ACID ISOAMYL ESTER
• Vanillin isobutyrate