The Butanol reference article from the English Wikipedia on 24-Jul-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Butanol

Butanol is a higher alcohol with a four carbon atoms and a general formula of C₄H₁₀O. There are four different isomeric structures for butanol:

butan-1-ol         CH3-CH2-CH2-CH2-OH

butan-2-ol         CH3-CH2-CH(OH)-CH3

sec-butanol        CH3-CH-CH3

                       |

                       CH2OH

                      OH

                      |

tert-butanol      CH3-C-CH3

                      |

                      CH3

These butanol isomers, due to their different structures, have somewhat different melting and boiling points. All are moderately miscible in water and used as a base for perfumes. Like most alcohols, they are poisonous.

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