Diethylbenzenes

Diethylbenzenes
	The three isomers of diethylbenzene:; ortho-, meta-, and para-diethylbenzene; (left to right)
Identifiers
CAS Number	25340-17-4 ; 1,2: 135-01-3 ; 1,3: 141-93-5 ; 1,4: 105-05-5 ;
3D model (JSmol)	1,2: Interactive image; 1,3: Interactive image; 1,4: Interactive image;
ChemSpider	1,2: 8335; 1,3: 8531; 1,4: 7448;
ECHA InfoCard	100.042.599
EC Number	1,2: 205-170-1; 1,3: 205-511-4; 1,4: 203-265-2;
PubChem CID	1,2: 8657; 1,3: 8864; 1,4: 7734;
RTECS number	CZ5600000;
UNII	9A18Z78Q73 ; 1,2: 25HOX6T1LU ; 1,3: ZM2X7I1G8Y ; 1,4: 0PSM16X42D ;
UN number	2049
CompTox Dashboard (EPA)	DTXSID4027866 ;
	InChI 1,2: InChI=1S/C10H14/c1-3-9-7-5-6-8-10(9)4-2/h5-8H,3-4H2,1-2H3 Key: KVNYFPKFSJIPBJ-UHFFFAOYSA-N; 1,3: InChI=1S/C10H14/c1-3-9-6-5-7-10(4-2)8-9/h5-8H,3-4H2,1-2H3 Key: AFZZYIJIWUTJFO-UHFFFAOYSA-N; 1,4: InChI=1S/C10H14/c1-3-9-5-7-10(4-2)8-6-9/h5-8H,3-4H2,1-2H3 Key: DSNHSQKRULAAEI-UHFFFAOYSA-N;
	SMILES 1,2: CCC1=CC=CC=C1CC; 1,3: CCC1=CC(=CC=C1)CC; 1,4: CCC1=CC=C(C=C1)CC;
Properties
Chemical formula	C10H14
Molar mass	134.22
Density	0.87 g/mL
Hazards
Flash point	134.6 °F / 57 °C
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Diethylbenzene (DEB) is any of three isomers with the formula C₆H₄(C₂H₅)₂. Each consists of a benzene ring and two ethyl substituents. The meta and para have the greater commercial significance. All are colorless solids.

Physical Properties
Compound names	m.p. °C	b.p. °C	Density g/cm³	Refractive Index
1,2-Diethylbenzene, o-diethylbenzene	31.2	183.5	0.8800	1.5035
1,3-Diethylbenzene, m-diethylbenzene	83.9	181.1	0.8602	1.4955
1,4-Diethylbenzene, p-diethylbenzene	42.8	183.8	0.8620	1.4967