Title: Cyclobutane
CAS Registry Number: 287-23-0
Additional Names: Tetramethylene
Molecular Formula: C4H8
Molecular Weight: 56.11
Percent Composition: C 85.62%, H 14.37%
Literature References: Prepd by hydrogenaton of cyclobutene in the presence of nickel at 100°: Willstätter, Bruce, Ber. 40, 3988 (1907); see also Heisig, J. Am. Chem. Soc. 63, 1698 (1941); by pyrolysis of ether, along with other products: Peytral, Bull. Soc. Chim. Fr. [4] 35, 964 (1924). In 39% yield from cyclobutanecarboxylic acid: Cason, Way, J. Org. Chem. 14, 31 (1949), for the prepn of this acid see Heisig, Stodola, Org. Synth. coll. vol. III, 213 (1955).
Properties: Gas. Burns with a luminous flame. mp -80°. bp741 13.08°. d0 0.7038; d-5 0.7185. nD0 1.37520. Insol in water; freely sol in alcohol, acetone.
Melting point: mp -80°
Boiling point: bp741 13.08°
Index of refraction: nD0 1.37520
Density: d0 0.7038; d-5 0.7185
Cyclobutyrol Cyclobuxine D Cyclocumarol Cyclodrine Cycloguanil

Cyclobutane Cyclobutane
CAS number 00287-23-0 YesY
PubChem 9250
ChemSpider 8894 N
Jmol-3D images Image 1
Molecular formula C4H8
Molar mass 56.107 g/mol
Density 0.720 g/cm3
Melting point −91 °C; −132 °F; 182 K
Boiling point 12.5 °C; 54.5 °F; 285.6 K
Related compounds
Related alkane Butane
Related compounds Cyclobutene; Cyclobutadiene
 N (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Cyclobutane is a cycloalkane and organic compound with the formula (CH2)4. Cyclobutane is a colourless gas and commercially available as a liquefied gas. Derivatives of cyclobutane are called cyclobutanes. Cyclobutane itself is of no commercial or biological significance, but more complex derivatives are important in biology and biotechnology.