Record Information
Version1.0
Creation date2010-04-08 22:07:57 UTC
Update date2018-01-23 19:01:45 UTC
Primary IDFDB008174
Secondary Accession NumbersNot Available
Chemical Information
FooDB Name4-Methyl-2-pentanone
DescriptionPresent in orange, lemon, concord grape, vinegar, cheeses, cooked beef, roasted peanut and other foodstuffs. Flavouring ingredient Methyl isobutyl ketone (MIBK) is an organic solvent. MIBK is among the top ten most popular organic solvents used in industry. MIBK is occasionally found as a volatile component of urine. MIBK in urine is considered as a biological marker of occupational exposure to this solvent. Olfactory perception is significant but adaptation may occur. The typical toxicity effects of MIBK in humans exposed at 50 to 100 ppm are mucous membrane irritation and weak effects on the central nervous system (CNS) such as headache. Visual dysfunction has been reported in workers exposed to a mixture of organic solvents containing MIBK. Memory impairment was detected in clinical observation on a 44-year-old man who had been exposed to MIBK at 100 ppm for more than 10 years. Regarding to the route of absorption, skin penetration of MIBK is substantial. (PMID: 12592578, 17485256, 16464817, 5556886). 4-Methyl-2-pentanone is found in many foods, some of which are nuts, ginger, citrus, and animal foods.
CAS Number108-10-1
Structure
Thumb
Synonyms
SynonymSource
2-Methyl-4-pentanoneHMDB
2-Methylpropyl methyl ketoneHMDB
4-Methyl-2-oxopentaneHMDB
4-Methyl-2-pentanonHMDB
4-Methyl-2-pentanoneHMDB
4-Methyl-pentan-2-ONHMDB
4-Methylpentan-2-oneHMDB
4-Metilpentan-2-oneHMDB
Ethyl iso-butyl ketoneHMDB
HexanoneHMDB
HexonHMDB
HexoneHMDB
Isobutyl methyl ketoneHMDB
Isobutyl-methylketonHMDB
IsohexanoneHMDB
Isopropyl acetoneHMDB
IsopropylacetoneHMDB
Methyl I-butyl ketoneHMDB
Methyl-isobutyl-cetoneHMDB
MethylisobutylketonHMDB
Methylpentan-2-oneHMDB
MetilisobutilchetoneHMDB
MetyloizobutyloketonHMDB
Shell mibkHMDB
Methyl isobutyl ketoneMeSH
2-Methyl-4-pentanalbiospider
2-Pentanone, 4-methyl-biospider
2-PENTANONE,4-METHYL METHYL,ISOBUTYL,KETONEbiospider
4-methyl-2-pentanone (MIBKbiospider
4-Methyl-pentan-2-onbiospider
FEMA 2731db_source
iso-C4H9COCH3biospider
Ketone, isobutyl methylbiospider
Methyl isobutyl ketone (NF)biospider
Methyl isobutyl ketone [UN1245] [Flammable liquid]biospider
Methyl isobutyl ketone [usan]biospider
Methyl isobutyl ketone)biospider
Methyl-2-pentanon,4-biospider
MIBKdb_source
MIKbiospider
Predicted Properties
PropertyValueSource
Water Solubility11 g/LALOGPS
logP1.31ALOGPS
logP1.54ChemAxon
logS-0.96ALOGPS
pKa (Strongest Acidic)19.61ChemAxon
pKa (Strongest Basic)-7.3ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area17.07 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity29.97 m³·mol⁻¹ChemAxon
Polarizability12.05 ųChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Chemical FormulaC6H12O
IUPAC name4-methylpentan-2-one
InChI IdentifierInChI=1S/C6H12O/c1-5(2)4-6(3)7/h5H,4H2,1-3H3
InChI KeyNTIZESTWPVYFNL-UHFFFAOYSA-N
Isomeric SMILESCC(C)CC(C)=O
Average Molecular Weight100.1589
Monoisotopic Molecular Weight100.088815006
Classification
Description belongs to the class of organic compounds known as ketones. These are organic compounds in which a carbonyl group is bonded to two carbon atoms R2C=O (neither R may be a hydrogen atom). Ketones that have one or more alpha-hydrogen atoms undergo keto-enol tautomerization, the tautomer being an enol.
KingdomOrganic compounds
Super ClassOrganic oxygen compounds
ClassOrganooxygen compounds
Sub ClassCarbonyl compounds
Direct ParentKetones
Alternative Parents
Substituents
  • Ketone
  • Organic oxide
  • Hydrocarbon derivative
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Physico-Chemical Properties - Experimental
Physico-Chemical Properties - Experimental
PropertyValueReference
Physical stateLiquid
Physical DescriptionNot Available
Mass CompositionC 71.95%; H 12.08%; O 15.97%DFC
Melting Point-84 oC
Boiling PointBp 116.8°DFC
Experimental Water Solubility19 mg/mL at 25 oCYALKOWSKY,SH & DANNENFELSER,RM (1992)
Experimental logP1.31TANII,H & HASHIMOTO,K (1986)
Experimental pKaNot Available
Isoelectric pointNot Available
ChargeNot Available
Optical RotationNot Available
Spectroscopic UV DataNot Available
Densityd204 0.8DFC
Refractive Indexn17D 1.3969DFC
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
ChemSpider ID7621
ChEMBL IDCHEMBL285323
KEGG Compound IDC19263
Pubchem Compound ID7909
Pubchem Substance IDNot Available
ChEBI IDNot Available
Phenol-Explorer IDNot Available
DrugBank IDNot Available
HMDB IDHMDB02939
CRC / DFC (Dictionary of Food Compounds) IDDDF01-Z:DDF01-Z
EAFUS ID2375
Dr. Duke IDMETHYL-ISOBUTYL-KETONE
BIGG IDNot Available
KNApSAcK IDNot Available
HET IDNot Available
Flavornet IDNot Available
GoodScent IDrw1032841
SuperScent IDNot Available
Wikipedia IDMethyl isobutyl ketone
Phenol-Explorer Metabolite IDNot Available
Duplicate IDSNot Available
Old DFC IDSNot Available
Associated Foods
FoodContent Range AverageReference
FoodReference
Biological Effects and Interactions
Health Effects / Bioactivities
DescriptorIDDefinitionReference
flavor48318 A substance, extract, or preparation for diffusing or imparting an agreeable or attractive smell.DUKE
perfumery48318 A substance, extract, or preparation for diffusing or imparting an agreeable or attractive smell.DUKE
EnzymesNot Available
PathwaysNot Available
MetabolismNot Available
BiosynthesisNot Available
Organoleptic Properties
Flavours
FlavorCitations
sharp
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
solvent
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
green
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
herbal
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
fruity
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
dairy
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
spice
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
Files
MSDSshow
References
Synthesis ReferenceNot Available
General ReferenceNot Available
Content Reference— Duke, James. 'Dr. Duke's Phytochemical and Ethnobotanical Databases. United States Department of Agriculture.' Agricultural Research Service, Accessed April 27 (2004).