Four-carbon molecule

• 1,2-butadiene
• 1-bicyclobutene
• 1-methylcyclopropene
• 3-methylcyclopropene
• 3-methylcyclopropyne
• List of compounds with carbon number 4
• bicyclobutane
• but-1-ene
• but-1-yne
• but-2-ene
• but-2-yne
• butadiene
• butane
• butatriene
• carbon
• cyclobutadiene
• cyclobutane
• cyclobutene
• cyclobutyne
• diacetylene
• isobutane
• isobutylene
• methylcyclopropane
• methylenecyclopropane
• methylenecyclopropene
• methylenecyclopropyne
• propalene
• tetrahedrane
• vinylacetylene
• Δ1,3-bicyclobutene