Butyric acid ethyl ester

• CAS: 105-54-4
• Catalog Number: ACM105544-1
• Category: Main Products; Fatty Acids and Ester Homologs
• Molecular Weight: 116.16
• Molecular Formula: C6H12O2
• Synonyms: Ethyl butyrate
• IUPAC Name: ethylbutanoate
• Canonical SMILES: CCCC(=O)OCC
• InChI Key: OBNCKNCVKJNDBV-UHFFFAOYSA-N
• Boiling Point: 120 °C (lit.)
• Melting Point: -93 °C (lit.)
• Flash Point: 26ºC
• Density: 0.87
• Appearance: Liquid
• Storage: Room temperature
• CNo Chain: C4:0
• Compound Derivative: Ethyl
• EC Number: 203-306-4
• Exact Mass: 116.08400
• Fatty Acid: Tetranoic; (Butyric)
• Hazard Statements: Xi:Irritant
• Packing Group: III
• Safety Description: S16-S26-S36
• Stability: Stable. Flammable. Incompatible with strong oxidizing agents, acids, bases.
• UN Number: 1180
• WGK Germany: 1

Case Study

Biosynthetic Pathway of Ethyl Butyrate by Saccharomyces Cerevisiae

Ma Y, et al. Journal of agricultural and food chemistry, 2020, 68(14), 4252-4260.

Ethyl butyrate is one of the important components of daily chemical flavors and food fragrances. Using alcohol acyltransferase-modified Saccharomyces cerevisiae as a catalyst to catalyze the reaction of butyryl-CoA and ethanol, the biosynthetic pathway of ethyl butyrate can be achieved.
Biosynthetic pathway of ethyl butyrate
· The butyryl-CoA synthesis pathway from C. acetobutylicum has been engineered to produce butanol and butyric acid in S. cerevisiae as well as in other hosts, including E. coli, Kluyveromyces marxianus, etc.
· To construct pathways for producing butyryl-CoA, two endogenous genes, MCT1 and Erg10, which can produce acetoacetyl-CoA from acetyl-CoA, and three exogenous genes, Hbd, Bcd, and Crt from C. acetobutylicum, were cloned.
· These five genes were overexpressed in the wild-type strain (AY14α) under the action of the strong promoter PGK1p and terminator PGK1t. Two engineered strains, EB (Hbd, Crt, Bcd, Erg10) and MB (Hbd, Crt, Bcd, MCT1), were obtained.
· After fermentation, the results showed that ethyl butyrate was produced by the modified strains EB and MB, but the production was low, approximately 1.76±0.34 mg/L and 1.09±0.12 mg/L, respectively.

Transesterification Reaction of Ethyl Butyrate with Methanol for Catalytic Activity Evaluation

Albuquerque M C G, et al. Journal of Molecular Catalysis A: Chemical, 2009, 300(1-2): 19-24.

The transesterification of ethyl butyrate with methanol can be used as a model reaction to evaluate the potential of catalysts in triglyceride transesterification for biodiesel production. A series of MgO/CaO catalysts were prepared with different molar ratios. The results show that when the Mg:Ca molar ratio is 3, the catalytic activity of the transesterification reaction is the highest, with a conversion rate of nearly 60%.
Catalyst activity assessment in transesterification reactions
· The transesterification reaction was performed in a glass bath reactor with a water-cooled condenser. The experimental conditions were: reaction temperature of 333 K, inert atmosphere (nitrogen), stirring rate of 1250 rpm and 1 h reaction time. Prior to the reaction, the catalysts were activated at 1073 K for 1 h (heating rate, 10 K/min) under He flow.
· After cooling, the catalyst was added to the reaction mixture keeping the He flow. The reaction was stopped by submerging the reactor in an ice bath. The catalyst was separated by filtration, and the reaction products were analyzed in a gas chromatograph.
· Finally, the degree of lixiviation of CaO/MgO samples was evaluated by contacting the catalyst with methanol under the same experimental conditions as used in the transesterification process, except for the presence of ethyl butyrate.

Custom Reviews

July 13, 2024

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Custom Q&A

What is the molecular formula of butyric acid ethyl ester?

The molecular formula of butyric acid ethyl ester is C6H12O2.

What is another name for butyric acid ethyl ester?

Another name for butyric acid ethyl ester is ethyl butanoate.

What is the molecular weight of butyric acid ethyl ester?

The molecular weight of butyric acid ethyl ester is 116.16 g/mol.

What is the IUPAC name of butyric acid ethyl ester?

The IUPAC name of butyric acid ethyl ester is ethyl butanoate.

Is butyric acid ethyl ester soluble in water?

No, butyric acid ethyl ester is insoluble in water.

What is the odor of butyric acid ethyl ester?

Butyric acid ethyl ester has a pineapple-like odor.

Is butyric acid ethyl ester denser or less dense than water?

Butyric acid ethyl ester is less dense than water.

Can butyric acid ethyl ester form hydrogen bonds?

No, butyric acid ethyl ester does not have any hydrogen bond donor count.

What is the CAS number of butyric acid ethyl ester?

The CAS number of butyric acid ethyl ester is 105-54-4.

Is butyric acid ethyl ester a natural product?

Yes, butyric acid ethyl ester is a natural product found in certain organisms.