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Key Documents

W217506

Sigma-Aldrich

Isobutyl acetate

FCC, FG

Synonym(s):

Acetic acid isobutyl ester

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About This Item

Linear Formula:
CH3COOCH2CH(CH3)2
CAS Number:
Molecular Weight:
116.16
FEMA Number:
2175
Beilstein:
1741909
EC Number:
Council of Europe no.:
195
MDL number:
UNSPSC Code:
12164502
PubChem Substance ID:
Flavis number:
9.005
NACRES:
NA.21

biological source

synthetic

Quality Level

grade

FG
Fragrance grade
Halal
Kosher

Agency

follows IFRA guidelines
meets purity specifications of JECFA

reg. compliance

EU Regulation 1223/2009
EU Regulation 1334/2008 & 178/2002
FCC
FDA 21 CFR 117
FDA 21 CFR 172.515

vapor density

>4 (vs air)

vapor pressure

15 mmHg ( 20 °C)

Assay

≥98%

form

liquid

autoignition temp.

793 °F

expl. lim.

10.5 %

refractive index

n20/D 1.39 (lit.)

pH

6.7 (20 °C, 5 g/L)

bp

115-117 °C (lit.)

mp

−99 °C (lit.)

solubility

95% ethanol: soluble 1 mL/mL

density

0.867 g/mL at 25 °C (lit.)

application(s)

flavors and fragrances

Documentation

see Safety & Documentation for available documents

food allergen

no known allergens

fragrance allergen

no known allergens

Organoleptic

apple; banana; fruity; ethereal; sweet

SMILES string

CC(C)COC(C)=O

InChI

1S/C6H12O2/c1-5(2)4-8-6(3)7/h5H,4H2,1-3H3

InChI key

GJRQTCIYDGXPES-UHFFFAOYSA-N

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General description

Isobutyl acetate, a medium chain ester, is a high-volume solvent, flavor and fragrance compound. It is the fruity ester formed during the fermentation of wine. Organoleptic threshold value of isobutyl acetate has been evaluated in Norwegian all-malt pilsener beer. Engineered biosynthesis of isobutyl acetate in Escherichia coli directly from glucose has been reported.

Application

Isobutyl acetate is suitable ester aroma compound used in the estimation of esters which contribute to the fruity aroma in sweet wines.

Biochem/physiol Actions

Taste at 10 ppm

Other Notes

Natural occurrence: Apple, banana, cocoa, fig, grape, grape brandy, pear, pineapple, sherry, strawberry and wine.

Pictograms

FlameExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Flam. Liq. 2 - STOT SE 3

Target Organs

Central nervous system

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

71.6 °F - Pensky-Martens closed cup

Flash Point(C)

22 °C - Pensky-Martens closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number

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