1,4-Cycloheptadiene

1,4-Cycloheptadiene
Names
	Preferred IUPAC name Cyclohepta-1,4-diene
	Other names 1,4-Cycloheptadiene
Identifiers
CAS Number	7161-35-5 ;
3D model (JSmol)	Interactive image;
Abbreviations	1,4-CHDN
ChemSpider	122548 ;
MeSH	1,4-cycloheptadiene
PubChem CID	138950;
UNII	EFF73R8YGV ;
UN number	3295
CompTox Dashboard (EPA)	DTXSID00221859 ;
	InChI Key: HQGYGGZHZWXFSI-UHFFFAOYSA-N; InChI=1S/C7H10/c1-2-4-6-7-5-3-1/h1-2,5,7H,3-4,6H2;
	SMILES C1CC=CCC=C1;
Properties
Chemical formula	C7H10
Molar mass	94.157 g·mol−1
Appearance	Colorless liquid
Density	0.84 g cm−3
Boiling point	−150.445 °C; −238.801 °F; 122.705 K
Refractive index (nD)	1.48
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H225, H340, H350, H373
Precautionary statements	P201, P210, P308+P313
NFPA 704 (fire diamond)	2 3 0
Flash point	6.293 °C (43.327 °F; 279.443 K)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

1,4-Cycloheptadiene is a highly flammable cycloalkene that occurs as a colorless clear liquid. It can form a yellow complex with palladium.^[1]

References

^ Rettig, Michael F.; Wing, Richard M. (June 1981). "X-ray crystallographic, chemical, and spectroscopic studies of the palladium dichloride complexes of cyclonona-1,5-diene, cycloocta-1,5-diene, cycloocta-1,4-diene, and cyclohepta-1,4-diene". Journal of the American Chemical Society. 103 (11): 2980–2986. doi:10.1021/ja00401a012.

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