The molecular formula C4H10O may refer to:
- Butanols
- 1-Butanol (n-Butanol)
- 2-Butanol (sec-Butanol)
- Isobutanol (2-methylpropan-1-ol)
- tert-Butyl alcohol (tert-Butanol, 2-methylpropanol)
- Ethers:
- Diethyl ether (ethoxyethane)
- Methyl propyl ether (methoxypropane, 1-methoxypropane)
- Methyl isopropyl ether or isopropyl methyl ether (2-methoxypropane)