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Key Documents

537470

Sigma-Aldrich

Isobutyl acetate

99%

Synonym(s):

Acetic acid isobutyl ester

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About This Item

Linear Formula:
CH3COOCH2CH(CH3)2
CAS Number:
Molecular Weight:
116.16
Beilstein:
1741909
EC Number:
MDL number:
UNSPSC Code:
12352108
PubChem Substance ID:
NACRES:
NA.21

vapor density

>4 (vs air)

Quality Level

vapor pressure

15 mmHg ( 20 °C)

Assay

99%

form

liquid

autoignition temp.

793 °F

expl. lim.

10.5 %

impurities

≤0.050% (water)

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

water: soluble 5.6 g/L at 20 °C

density

0.867 g/mL at 25 °C (lit.)

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 (IBA), one of the isomers of butyl acetate, is an odorant found in fruits. Vapor-liquid equilibria of its binary mixture with isobutyl alcohol at 20 and 101.3kPa have been evaluated. Its synthesis via lipase-catalyzed esterification reaction has been reported.

Application


  • Green Synthesis of the Flavor Esters with a Marine Candida parapsilosis Esterase Expressed in Saccharomyces cerevisiae.: This study demonstrates a green synthesis approach using a marine esterase for the production of flavor esters, including isobutyl acetate. The process employs Saccharomyces cerevisiae, showcasing the potential for sustainable production of flavoring agents in the food and beverage industry (Xue et al., 2020).

  • In-line reaction monitoring of entacapone synthesis by Raman spectroscopy and multivariate analysis.: This research employs Raman spectroscopy to monitor the synthesis of entacapone in real-time. Isobutyl acetate is utilized as a solvent in the reaction, highlighting its relevance in pharmaceutical synthesis and process monitoring (Novak et al., 2011).

  • Paint thinner exposure inhibits testosterone synthesis and secretion in a reversible manner in the rat.: This study investigates the effects of paint thinner exposure, which contains isobutyl acetate, on testosterone synthesis in rats. The findings provide insights into the potential endocrine-disrupting properties of isobutyl acetate in industrial applications (Yilmaz et al., 2006).

  • Preparation of spherically agglomerated crystals of aminophylline.: This research explores the preparation of aminophylline crystals using isobutyl acetate as a solvent. The study emphasizes the compound′s utility in pharmaceutical formulations to enhance drug solubility and bioavailability (Kawashima et al., 1984).

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


Certificates of Analysis (COA)

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Rabia Alghazeer et al.
Food chemistry, 108(3), 801-810 (2008-06-01)
The effect of frozen storage on lipid peroxidation in Atlantic mackerel (Scomber scombrus) stored for up to 26 weeks at -10 or -80°C (control), with and without green tea antioxidants, was investigated. Hydroperoxides (PV) and aldehydes (TBARS) were measured by
Isobaric vapor-liquid equilibria for the binary systems isobutyl alcohol+ isobutyl acetate and tert-butyl alcohol+tert-butyl acetate at 20 and 101.3 kPa.
Monton JB, et al.
Fluid Phase Equilibria, 227(1), 19-25 (2005)
Determination of low phosphate concentrations in seawater by an isobutyl acetate extraction procedure.
Cescon BS and Scarazzato PG.
Limnology and Oceanography, 18(3), 499-500 (1973)
Günter E Jeromin et al.
Biotechnology letters, 30(5), 925-928 (2008-01-16)
A new irreversible esterification method for carboxylic acids catalyzed by a lipase from Candida antarctica (Novozyme 435) in organic solvents has been developed. The water produced during the process is chemically destroyed by a corresponding ester of acetoacetate, which acts
Y H Yoon et al.
American Industrial Hygiene Association journal, 51(6), 319-325 (1990-06-01)
A previously developed theoretical model was applied to investigate contaminant breakthrough on charcoal sampling tubes. Associated with the model are two important theoretical parameters. These parameters are k' (a rate constant) and tau (the time required for 50% contaminant breakthrough).

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