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Merck

W217506

Isobutyl acetate

FCC, FG

Synonyme(s) :

Acetic acid isobutyl ester

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A propos de cet article

Formule linéaire :
CH3COOCH2CH(CH3)2
Numéro CAS:
Poids moléculaire :
116.16
FEMA Number:
2175
Council of Europe no.:
195
UNSPSC Code:
12164502
PubChem Substance ID:
Flavis number:
9.005
EC Number:
203-745-1
NACRES:
NA.21
MDL number:
Beilstein/REAXYS Number:
1741909
Organoleptic:
apple; banana; fruity; ethereal; sweet
Grade:
FG, Fragrance grade, Halal, Kosher
Biological source:
synthetic
Agency:
follows IFRA guidelines, meets purity specifications of JECFA
Food allergen:
no known allergens
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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

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.


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Hazard Classifications

Flam. Liq. 2 - STOT SE 3

target_organs

Central nervous system

Classe de stockage

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

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter



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Consulter la Bibliothèque de documents



Yi-Shu Tai et al.
Metabolic engineering, 27, 20-28 (2014-12-03)
Medium-chain esters such as isobutyl acetate (IBAc) and isoamyl acetate (IAAc) are high-volume solvents, flavors and fragrances. In this work, we engineered synthetic metabolic pathways in Escherichia coli for the total biosynthesis of IBAc and IAAc directly from glucose. Our
Fermentation esters-formation and retention as affected by fermentation temperature.
Killian E and Ough CS.
American Journal of Enology and Viticulture, 30(4), 301-305 (1979)
Organoleptic threshold values of some alcohols and esters in beer.
Engan S.
Journal of the Institute of Brewing, 78(1), 33-36 (1972)