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.
Xylenes, 99+%, for residue analysis, mixed, electronic use grade
CAS: 1330-20-7 Molecular Formula: C8H10 MDL Number: MFCD00077264 Synonym: Dimethylbenzene
o-Xylene, 99%, Extra Dry, AcroSeal™
CAS: 95-47-6 Molecular Formula: C8H10 Molecular Weight (g/mol): 106.17 MDL Number: MFCD00008519 InChI Key: CTQNGGLPUBDAKN-UHFFFAOYSA-N Synonym: o-xylene,1,2-dimethylbenzene,ortho-xylene,o-xylol,o-methyltoluene,o-dimethylbenzene,2-xylene,3,4-xylene,benzene, 1,2-dimethyl,o-xylenes PubChem CID: 7237 ChEBI: CHEBI:28063 IUPAC Name: 1,2-xylene SMILES: CC1=CC=CC=C1C
5-Bromo-m-xylene, 98%
CAS: 556-96-7 Molecular Formula: C8H9Br Molecular Weight (g/mol): 185.06 InChI Key: LMFRTSBQRLSJHC-UHFFFAOYSA-N Synonym: 5-bromo-m-xylene,3,5-dimethylbromobenzene,benzene, 1-bromo-3,5-dimethyl,m-xylene, 5-bromo,5-bromo-1,3-xylene,5-bromo-1,3-dimethylbenzene,1-bromo-3,5-dimethyl-benzene,5-bromo-meta-xylene,5-bromo-3,5-dimethylbenzene,1-bromo-3,5-dimethyl benzene PubChem CID: 136357 IUPAC Name: 1-bromo-3,5-dimethylbenzene SMILES: CC1=CC(=CC(=C1)Br)C
Mexiletine hydrochloride
CAS: 1-4-5370 Molecular Formula: C11H17NO·HCl Molecular Weight (g/mol): 215.72 InChI Key: NFEIBWMZVIVJLQ-UHFFFAOYNA-N Synonym: mexiletine hydrochloride,mexitil,mexiletine hcl,mexiletene hydrochloride,1-2,6-dimethylphenoxy-2-propanamine hydrochloride,1-2,6-dimethylphenoxy propan-2-amine hydrochloride,2-propanamine, 1-2,6-dimethylphenoxy-, hydrochloride,mexitil tn,1-2,6-xylyloxy-2-aminopropane hydrochloride PubChem CID: 21467 ChEBI: CHEBI:6917 IUPAC Name: 1-(2,6-dimethylphenoxy)propan-2-amine;hydrochloride SMILES: CC1=C(C(=CC=C1)C)OCC(C)N.Cl
2-Bromo-p-xylene, 98+%
CAS: 553-94-6 Molecular Formula: C8H9Br Molecular Weight (g/mol): 185.06 MDL Number: MFCD00000074 InChI Key: QXISTPDUYKNPLU-UHFFFAOYSA-N Synonym: 2,5-dimethylbromobenzene,2-bromo-p-xylene,1-bromo-2,5-dimethylbenzene,benzene, 2-bromo-1,4-dimethyl,bromo-p-xylene,2-bromo-1,4-dimethyl-benzene,2,5-xylyl bromide,2-bromo-1,4-xylene,2,5-dimethylphenyl bromide,p-xylene, 2-bromo PubChem CID: 11121 IUPAC Name: 2-bromo-1,4-dimethylbenzene SMILES: CC1=CC=C(C)C(Br)=C1
2,6-Dimethylphenyl isocyanide
CAS: 2769-71-3 Molecular Formula: C9H9N Molecular Weight (g/mol): 131.18 MDL Number: MFCD00013479 InChI Key: DNJLFZHMJDSJFN-UHFFFAOYSA-N Synonym: 2,6-dimethylphenyl isocyanide,2,6-dimethylphenylisonitrile,2,6-dimethylphenylisocyanide,2,6-xyleneisonitrile,2,6-xylyl isocyanide,benzene,2-isocyano-1,3-dimethyl,benzene, 2-isocyano-1,3-dimethyl-9ci,vic.-m-xylyl isocyanide,acmc-20ao80,2,6-dimethyiphenyl isocyanide PubChem CID: 76009 IUPAC Name: 2-isocyano-1,3-dimethylbenzene SMILES: CC1=CC=CC(C)=C1[N+]#[C-]
Xylenes, MilliporeSigma™
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
Lidocaine, 99.9%, MP Biomedicals™
CAS: 137-58-6 Molecular Formula: C14H22N2O Molecular Weight (g/mol): 234.343 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 , Macron Fine Chemicals™
CAS: 1330-20-7 Molecular Formula: C6H4(CH3)2
o-Xylene, Puriss. p.a.,≥99.0% (GC), Solstice
CAS: 95-47-6 Molecular Formula: C8H10 Molecular Weight (g/mol): 106.17 MDL Number: MFCD00008519 InChI Key: CTQNGGLPUBDAKN-UHFFFAOYSA-N Synonym: 1,2-Dimethylbenzene IUPAC Name: 1,2-xylene SMILES: CC1=CC=CC=C1C
o-Xylene, 98.0%, MilliporeSigma™
CAS: 95-47-6 Molecular Formula: C8H10 Molecular Weight (g/mol): 106.17 InChI Key: CTQNGGLPUBDAKN-UHFFFAOYSA-N IUPAC Name: 1,2-xylene SMILES: CC1=CC=CC=C1C
Xylenes, MilliporeSigma™
CAS: 1330-20-7 Molecular Formula: C6H4(CH3)2
o-Xylene, ≥99.0% (GC), Solstice
CAS: 95-47-6 Molecular Formula: C8H10 Molecular Weight (g/mol): 106.17 MDL Number: MFCD00008519 InChI Key: CTQNGGLPUBDAKN-UHFFFAOYSA-N Synonym: o-xylene,1,2-dimethylbenzene,ortho-xylene,o-xylol,o-methyltoluene,o-dimethylbenzene,2-xylene,3,4-xylene,benzene, 1,2-dimethyl,o-xylenes PubChem CID: 7237 ChEBI: CHEBI:28063 IUPAC Name: 1,2-xylene SMILES: CC1=CC=CC=C1C