1,8-Dimethylnaphthalene

1,8-Dimethylnaphthalene
Identifiers
CAS Number	569-41-5;
3D model (JSmol)	Interactive image;
Beilstein Reference	2039841
ChEBI	CHEBI:48610;
ChemSpider	10813;
ECHA InfoCard	100.008.469
EC Number	209-314-4;
KEGG	C14703;
PubChem CID	11287;
UNII	22P9FW1L76;
CompTox Dashboard (EPA)	DTXSID6060347 ;
	InChI InChI=1S/C12H12/c1-9-5-3-7-11-8-4-6-10(2)12(9)11/h3-8H,1-2H3 Key: YGYNBBAUIYTWBF-UHFFFAOYSA-N;
	SMILES CC1=C2C(=CC=CC2=CC=C1)C;
Properties
Chemical formula	C12H12
Molar mass	156.228 g·mol−1
Appearance	white solid
Melting point	59–61 °C (138–142 °F; 332–334 K)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

1,8-Dimethylnaphthalene (1,8-DMN) is an organic compound with the formula C₁₀H₆(CH₃)₂. It is one of the ten isomers of dimethylnaphthalene.^[1] Methylated naphthalenes are typically obtained from coal tar. The concentration of 1,8-dimethylnaphthalene have attracted interest as markers of the age of a petroleum.^[2] 1,8-Dimethylnaphthalene isomerizes to 1,7-dimethylnaphthalene when heated near 360 °C in the presence of clays.^[3]

References

↑ Collin, Gerd; Höke, Hartmut; Greim, Helmut (2003). "Naphthalene and Hydronaphthalenes". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a17_001.pub2. ISBN 978-3-527-30673-2.
↑ Alexander, Robert; Kagi, Robert; Sheppard, Peter (1984). "1,8-Dimethylnaphthalene as an indicator of petroleum maturity". Nature. 308 (5958): 442–443. Bibcode:1984Natur.308..442A. doi:10.1038/308442a0.
↑ Smith, J.W.; Batts, B.D. (1992). "Thermal reactions of 1,8-dimethylnaphthalene". Organic Geochemistry. 18 (5): 737–744. Bibcode:1992OrGeo..18..737S. doi:10.1016/0146-6380(92)90099-J.

[1] Collin, Gerd; Höke, Hartmut; Greim, Helmut (2003). "Naphthalene and Hydronaphthalenes". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a17_001.pub2. ISBN 978-3-527-30673-2.

[2] Alexander, Robert; Kagi, Robert; Sheppard, Peter (1984). "1,8-Dimethylnaphthalene as an indicator of petroleum maturity". Nature. 308 (5958): 442–443. Bibcode:1984Natur.308..442A. doi:10.1038/308442a0.

[3] Smith, J.W.; Batts, B.D. (1992). "Thermal reactions of 1,8-dimethylnaphthalene". Organic Geochemistry. 18 (5): 737–744. Bibcode:1992OrGeo..18..737S. doi:10.1016/0146-6380(92)90099-J.

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