o-Xylene

o-Xylene

Skeletal formula Space-filling model
Identifiers
CAS Number	95-47-6 Y
ChEBI	CHEBI:28063 Y
ChEMBL	ChEMBL45005 Y
ChemSpider	6967 Y
DrugBank	DB03029 Y
Jmol 3D model	Interactive image
KEGG	C07212 Y
RTECS number	ZE2450000
UNII	Z2474E14QP Y
InChI InChI=1S/C8H10/c1-7-5-3-4-6-8(7)2/h3-6H,1-2H3 Y Key: CTQNGGLPUBDAKN-UHFFFAOYSA-N Y InChI=1/C8H10/c1-7-5-3-4-6-8(7)2/h3-6H,1-2H3 Key: CTQNGGLPUBDAKN-UHFFFAOYAE
SMILES CC1=C(C)C=CC=C1
Properties
Chemical formula	C8H10
Molar mass	106.17 g·mol−1
Appearance	Colorless liquid
Density	0.88 g/ml
Melting point	−24 °C (−11 °F; 249 K)
Boiling point	144.4 °C (291.9 °F; 417.5 K)
Solubility in water	0.02% (20°C)
Solubility in ethanol	very soluble
Solubility in diethyl ether	very soluble
Vapor pressure	7 mmHg (20°C)
Refractive index (nD)	1.50545
Viscosity	1.1049 cP at 0 °C 0.8102 cP at 20 °C
Structure
Dipole moment	0.64 D
Vapor pressure	{{{value}}}
Related compounds
Related aromatic hydrocarbons	m-xylene p-xylene toluene
Supplementary data page
Structure and properties	Refractive index (n), Dielectric constant (εr), etc.
Thermodynamic data	Phase behaviour solid–liquid–gas
Spectral data	UV, IR, NMR, MS
Y verify (what is YN ?)
Infobox references

o-Xylene (ortho-xylene) is an aromatic hydrocarbon, based on benzene with two methyl substituents bonded to adjacent carbon atoms in the aromatic ring (the ortho configuration).

It is a constitutional isomer of m-xylene and p-xylene.

o-Xylene is largely used in the production of phthalic anhydride, and is generally extracted by distillation from a mixed xylene stream in a plant primarily designed for p-xylene production.

See also

• Xylene