Record Information
Version1.0
Creation Date2009-07-30 17:58:29 UTC
Update Date2026-04-03 08:42:25 UTC
Accession NumberCHEM002490
Identification
Common Name3-Methyl-1-butene
ClassSmall Molecule
Description3-Methyl-1-butene is a hydrocarbon and one of the isomers of pentene. Pentenes are components of gasoline and are often produced as by-products of catalytic of thermal cracking of petroleum. (4)
Contaminant Sources
  • Clean Air Act Chemicals
  • FooDB Chemicals
  • HPV EPA Chemicals
  • T3DB toxins
Contaminant Type
  • Gasoline Additive/Component
  • Industrial/Workplace Toxin
  • Organic Compound
  • Synthetic Compound
Chemical Structure
Thumb
Synonyms
ValueSource
(CH3)2CHCH=ch2ChEBI
2-Methyl-3-buteneChEBI
3-Methylbutene-1ChEBI
alpha-IsoamyleneChEBI
IsopenteneChEBI
IsopropylethyleneChEBI
VinylisopropylChEBI
a-IsoamyleneGenerator
Α-isoamyleneGenerator
3-Methyl-1-buteneChEBI
Chemical FormulaC5H10
Average Molecular Mass70.133 g/mol
Monoisotopic Mass70.078 g/mol
CAS Registry Number563-45-1
IUPAC Name3-methylbut-1-ene
Traditional Name3-methyl-1-butene
SMILESCC(C)C=C
InChI IdentifierInChI=1S/C5H10/c1-4-5(2)3/h4-5H,1H2,2-3H3
InChI KeyYHQXBTXEYZIYOV-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as unsaturated aliphatic hydrocarbons. These are aliphatic Hydrocarbons that contains one or more unsaturated carbon atoms. These compounds contain one or more double or triple bonds.
KingdomOrganic compounds
Super ClassHydrocarbons
ClassUnsaturated hydrocarbons
Sub ClassUnsaturated aliphatic hydrocarbons
Direct ParentUnsaturated aliphatic hydrocarbons
Alternative Parents
Substituents
  • Unsaturated aliphatic hydrocarbon
  • Olefin
  • Alkene
  • Acyclic olefin
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Biological Properties
StatusDetected and Not Quantified
OriginExogenous
Cellular Locations
  • Membrane
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
ApplicationsNot Available
Biological RolesNot Available
Chemical RolesNot Available
Physical Properties
StateLiquid
AppearanceNot Available
Experimental Properties
PropertyValue
Melting Point-168.5°C
Boiling PointNot Available
Solubility0.13 mg/mL at 25°C [YALKOWSKY,SH & DANNENFELSER,RM (1992)]
Predicted Properties
PropertyValueSource
Water Solubility0.26 g/LALOGPS
logP2.3ALOGPS
logP2.23ChemAxon
logS-2.4ALOGPS
Physiological Charge0ChemAxon
Hydrogen Acceptor Count0ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area0 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity24.8 m³·mol⁻¹ChemAxon
Polarizability9.32 ųChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-056r-9000000000-7f707120f5093a24c0a4Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-00di-9000000000-6fe0c0fa44b03bdcaadbSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-00di-9000000000-530a393f55b52937c3f1Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0a4i-9000000000-f349dc8e21dda90592e2Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-014i-9000000000-d578b47e0ee889163d27Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-014i-9000000000-d578b47e0ee889163d27Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0gb9-9000000000-1c380732270d5d978511Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-00di-9000000000-b27f5075f28e806271bcSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-06di-9000000000-e78ec8e28fd5ce9a6798Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-052r-9000000000-98cd482a61b70871457eSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-014i-9000000000-a25bd48de2b49c10466bSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-014i-9000000000-a25bd48de2b49c10466bSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0gb9-9000000000-5d46f7e8ccd04f63835dSpectrum
MSMass Spectrum (Electron Ionization)splash10-0a6r-9000000000-e09f0e2cb6c93058f85dSpectrum
Toxicity Profile
Route of ExposureOral (3) ; inhalation (3) ; dermal (3)
Mechanism of ToxicityPetroleum distillates are central nervous system depressants and cause pulmonary damage. (2)
MetabolismVolatile hydrocarbons are absorbed mainly through the lungs, and may also enter the body after ingestion via aspiration. (2)
Toxicity ValuesNot Available
Lethal DoseNot Available
Carcinogenicity (IARC Classification)No indication of carcinogenicity to humans (not listed by IARC).
Uses/SourcesPentenes are components of gasoline and are often produced as by-products of catalytic of thermal cracking of petroleum. (4)
Minimum Risk LevelNot Available
Health EffectsPetroleum distillates are aspiration hazards and may cause pulmonary damage, central nervous system depression, and cardiac effects such as cardiac arrhythmias. They may also affect the blood, immune system, liver, and kidney. (2, 5)
SymptomsPetroleum distillate poisoning may cause nausea, vomiting, cough, pulmonary irritation progressing to pulmonary edema, bloody sputum, and bronchial pneumonia. At high amounts, central nervous system depression may also occur, with symptoms such as weakness, dizziness, slow and shallow respiration, unconsciousness, and convulsions. Petroleum distillates are also irritating to the skin. (1)
TreatmentTreatment is mainly symptomatic and supportive. Gastric lavage, emesis, and the administration of activated charcoal should be avoided, as vomiting increases the risk of aspiration. (2)
Concentrations
Not Available
DrugBank IDNot Available
HMDB IDHMDB0245923
FooDB IDFDB005083
Phenol Explorer IDNot Available
KNApSAcK IDNot Available
BiGG IDNot Available
BioCyc IDNot Available
METLIN IDNot Available
PDB IDNot Available
Wikipedia LinkNot Available
Chemspider ID10765
ChEBI ID77914
PubChem Compound ID11239
Kegg Compound IDNot Available
YMDB IDNot Available
ECMDB IDNot Available
References
Synthesis ReferenceNot Available
MSDSNot Available
General References
1. https://www.ncbi.nlm.nih.gov/pubmed/?term=24511538
2. Barupal DK, Fiehn O: Generating the Blood Exposome Database Using a Comprehensive Text Mining and Database Fusion Approach. Environ Health Perspect. 2019 Sep;127(9):97008. doi: 10.1289/EHP4713. Epub 2019 Sep 26.