tetracosane

{{Chembox

| Watchedfields = changed

| verifiedrevid = 470603606

| ImageFile = Tetracosane structure.png

| ImageFile_Ref = {{chemboximage|correct|??}}

| ImageName = Skeletal formula of tetracosane

| PIN = Tetracosane{{cite web|title=tetracosane - Compound Summary|url=https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=12592&loc=ec_rcs|work=PubChem Compound|publisher=National Center for Biotechnology Information|accessdate=2 January 2012|location=USA|date=16 September 2004|at=Identification and Related Records}}

|Section1={{Chembox Identifiers

| CASNo = 646-31-1

| CASNo_Ref = {{cascite|correct|CAS}}

| UNII_Ref = {{fdacite|correct|FDA}}

| UNII = YQ5H1M1D7I

| PubChem = 12592

| ChemSpiderID = 12072

| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}

| EINECS = 211-474-5

| ChEBI = 32936

| ChEBI_Ref = {{ebicite|correct|EBI}}

| Beilstein = 1758462

| SMILES = CCCCCCCCCCCCCCCCCCCCCCCC

| StdInChI = 1S/C24H50/c1-3-5-7-9-11-13-15-17-19-21-23-24-22-20-18-16-14-12-10-8-6-4-2/h3-24H2,1-2H3

| StdInChI_Ref = {{stdinchicite|correct|chemspider}}

| StdInChIKey = POOSGDOYLQNASK-UHFFFAOYSA-N

| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}

}}

|Section2={{Chembox Properties

| C = 24

| H = 50

| Appearance = Colourless, waxy crystals

| Odor = Oil of Hamamelis leaves{{citation needed|date=June 2012}}

| MeltingPtK = 321 to 327

| BoilingPtK = 664.5

| Solubility = not soluble

| Solvent =

| SolubleOther = very soluble in benzene, toluene, ether, soluble in alcohol.

}}

|Section3={{Chembox Structure

| CrystalStruct = Orthorhombic

| Dipole = 0 D

}}

|Section4={{Chembox Thermochemistry

| Entropy = 651.0 J K⁻¹ mol⁻¹

| HeatCapacity = 730.9 J K⁻¹ mol⁻¹

}}

|Section5={{Chembox Hazards

| FlashPt = >

| FlashPtC = 113

}}

|Section6={{Chembox Related

| OtherFunction_label = alkanes

| OtherFunction = {{Unbulleted list|Heneicosane|Nonacosane}}

}}

}}

Tetracosane, also called tetrakosane, is an alkane hydrocarbon with the structural formula H(CH₂)₂₄H. As with other alkanes, its name is derived from Greek for the number of carbon atoms, 24, in the molecule. It has 14,490,245 constitutional isomers,{{Cite OEIS|1=A000602|2=|accessdate=30 August 2013}} and 252,260,276 stereoisomers.{{Cite OEIS|1=A000628|2=|accessdate=30 August 2013}}

n-Tetracosane is found in mineral form, called evenkite, in the Evenki Region on Lower Tunguska River in Siberia and the Bucnik quarry near Konma in eastern Moravia, Czech Republic. Evenkite is found as colourless flakes and is reported to fluoresce yellow-orange.

Image:Mineraly.sk - evenkit.jpg{{clear|left}}