Xylenes
Xylenes
Xylenes are any one of three isomers of dimethylbenzene, or a combination thereof. All are colorless, flammable liquids composed of a central benzene ring with two methyl groups attached at substituents. They can be applied as precursor chemicals and solvents.
Xylenes are flammable petrochemical products that can be produced via catalytic reforming and coal carbonization during coke production and found in crude oil, gasoline, and aircraft fuel. Xylenes were first isolated from wood tar and named by the French chemist Auguste Cahours.
What Is Xylene?
Xylene, more appropriately called xylenes, refers to any single or combination of the three isomers of dimethylbenzene. The isomeric forms are designated as ortho- (o-), meta- (m-), and para- (p-), a reference to the carbon in the benzene ring to which the two methyl groups are attached.
- o-isomer: 1,2-dimethylbenzene
- m-isomer: 1,3-dimethylbenzene
- p-isomer: 1,4-dimethylbenzene
Xylenes are colorless and can be detected by odor at concentrations as low as 0.08 to 3.7 ppm in air and tasted in water at 0.53 to 1.8 ppm.
Refer to the Certificate of Analysis or the Safety Data Sheet for specific information about xylene density and safety hazards.
What Is Xylene Used For?
Industrial Uses
p-Xylene is a precursor to terephthalic acid and dimethyl terephthalate, used to make polyethylene terephthalate plastic bottles and polyester clothing.
Xylene can be used as a solvent and is a common component of ink, rubber, adhesives, and paint and varnish thinners. Xylenes may be used to clean steel, silicon wafers, and integrated circuits. Medical applications include use as a solvent of dental materials and ear wax.
Laboratory Uses
Xylene can be used with dry ice in baths, to remove oil from microscope objectives, and as a cleaning agent or mounting material in histology procedures.
Xylene, Certified AR for Analysis, Fisher Chemical™
CAS: 1330-20-7 Molecular Formula: C8H10 MDL Number: 77264
Xylene, Extra Pure, SLR, Fisher Chemical™
CAS: 1330-20-7 Molecular Formula: C8H10 MDL Number: 77264
Xylenes, 98%, pure, mixture of isomers, Thermo Scientific Chemicals
CAS: 1330-20-7 Molecular Formula: C8H10 MDL Number: MFCD00077264 Synonym: Dimethylbenzene
Xylene, Technical, Fisher Chemical™
CAS: 1330-20-7 Molecular Formula: C8H10 Molecular Weight (g/mol): 106.17 MDL Number: 77264 InChI Key: IVSZLXZYQVIEFR-UHFFFAOYSA-N IUPAC Name: 1,3-xylene SMILES: CC1=CC(C)=CC=C1
Xylenes, 99%, for biochemistry and histology, mixed isomers with ethylbenzene, Thermo Scientific Chemicals
CAS: 1330-20-7 Molecular Formula: C8H10 Molecular Weight (g/mol): 106.17 InChI Key: IVSZLXZYQVIEFR-UHFFFAOYSA-N IUPAC Name: 1,3-xylene SMILES: CC1=CC(C)=CC=C1
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Xylenes, Histological Grade, Honeywell™
CAS: 1330-20-7 MDL Number: MFCD00077264
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Xylenes, Reagent ACS, 99%, Thermo Scientific Chemicals
CAS: 1330-20-7 Molecular Formula: C8H10 MDL Number: MFCD00077264 Synonym: Dimethylbenzene
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Xylenes, extra pure, mixture of isomers, Thermo Scientific Chemicals
CAS: 1330-20-7 Molecular Formula: C8H10 Synonym: Dimethylbenzene
Xylene, for Electronic Use (MOS), Fisher Chemical™
CAS: 1330-20-7 Molecular Formula: C8H10 MDL Number: 77264
Xylenes, 98+%, for analysis, mixture of isomers , Thermo Scientific Chemicals
CAS: 1330-20-7 Molecular Formula: C8H10 Synonym: Dimethylbenzene
Lidocaine, 97.5%, Thermo Scientific Chemicals
CAS: 137-58-6 Molecular Formula: C14H22N2O Molecular Weight (g/mol): 234.343 MDL Number: MFCD00026733 InChI Key: NNJVILVZKWQKPM-UHFFFAOYSA-N Synonym: lidocaine,lignocaine,xylocaine,lidoderm,2-diethylamino-n-2,6-dimethylphenyl acetamide,anestacon,esracaine,duncaine,cappicaine,gravocain PubChem CID: 3676 ChEBI: CHEBI:6456 IUPAC Name: 2-(diethylamino)-N-(2,6-dimethylphenyl)acetamide SMILES: CCN(CC)CC(=O)NC1=C(C=CC=C1C)C
Xylenes, ≥98.5%, ACS Reagent, xylenes plus ethylbenzene basis, Honeywell™ Riedel-de Haën™
CAS: 1330-20-7 MDL Number: MFCD00077264
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Xylenes, Honeywell
CAS: 1330-20-7 MDL Number: MFCD00077264