Ethyl isobutyrate


Receptor Interaction

Odor Profile

Strength: high


Sanz G, Schlegel C, Pernollet JC, Briand L. Comparison of odorant specificity of two human olfactory receptors from different phylogenetic classes and evidence for antagonism. Chem Senses. 2005 Jan;30(1):69-80. doi: 10.1093/chemse/bji002.


Saito H, Chi Q, Zhuang H, Matsunami H, Mainland JD. Odor coding by a Mammalian receptor repertoire. Sci Signal. 2009 Mar 3;2(60):ra9. doi: 10.1126/scisignal.2000016.


Liu X, Su X, Wang F, Huang Z, Wang Q, Li Z, Zhang R, Wu L, Pan Y, Chen Y, Zhuang H, Chen G, Shi T, Zhang J. ODORactor: a web server for deciphering olfactory coding. Bioinformatics. 2011 Aug 15;27(16):2302-3. doi: 10.1093/bioinformatics/btr385.

General Information

Common Name: Ethyl isobutyrate
IUPAC Name: ethyl 2-methylpropanoate
Molecular Formula: C6H12O2
Inchi: 1S/C6H12O2/c1-4-8-6(7)5(2)3/h5H,4H2,1-3H3
Cas No: 97-62-1

Functional Group


Drug Likeness

Name Value
Lipinski Violations 0
Ghose Violations 2
Veber Violations 0
Egan Violations 0
Muegge Violations 1

Cross References

PubChem: 7342
Zinc: ZINC391109
OdoRactor: View
TGSC: View

Physicochemical properties

Name Value
Molecular Weight (g/mol) 116.16
Mass (g/mol) 116.084
Molar Refractivity 32.24
Net Charge
Rt Bonds 3
TPSA 26.30
Hetero Atoms 2
Heavy Atoms 8
Aromatic Heavy Atoms 0
Melting Point (°C) -88.00 to -87.00
Boiling Point (°C@760.00mm Hg) 112.00 to 113.00
Vapor Pressure (mmHg@25.00 °C) 25.4
Vapor Density (Air =1) 4.01
Fraction Csp3 0.83
LogP 1.206
iLOGP 2.16
XLOGP3 1.52
WLOGP 1.21
MLOGP 1.27
ESOL Log S -1.32
ESOL Solubility (mg/ml) 5.56
ESOL Solubility (mol/l) 0.048
ESOL Class: esol_class Very soluble
Ali Log S -1.68
Ali Solubility (mg/ml) 2.42
Ali Solubility (mol/l) 0.02
Ali Class Very soluble
Silicos-IT LogSw -1.13
Silicos-IT Solubility (mg/ml) 8.61
Silicos-IT Solubility (mol/l) 0.07
Silicos-IT Class Soluble

Pharmacokinetic profile

Name Value
GI Absorption High
BBB Permeable 1
PgP Substrate 0
Log Kp (cm/s) -5.93
Bioavailability Score 0.55
Caco2 1
Human Intestinal Absorption 1
Plasm Protein Binding 0.655
CYP1A2 Inhibitor 0
CYP2C19 Inhibitor 0
CYP2C9 Inhibitor 0
CYP2D6 inhibitor 0
CYP3A4 inhibitor 0
Ames mutagenesis 0
Acute Oral Toxicity 1.129
Carcinogenicity (Binary) 0
Carcinogenicity (Trinary) Non-required
Eye Irritation 1
Hepatotoxicity 0
Androgen Receptor Binding 0
Aromatase Binding 0
Estrogen Receptor Binding 0
Glucocorticoid Receptor Binding 0
Thyroid Receptor Binding 0
BRCP inhibitor 0
BSEP inhibitor 0
OATP1B1 inhibitor 1
OATP1B3 inhibitor 1
OATP2B1 inhibitor 0
OCT1 inhibitor 0
OCT2 inhibitor 0