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.
o-Xylene (Certified), Fisher Chemical
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
Xylenes (Histological), Fisher Chemical™
CAS: 1330-20-7 Molecular Formula: C8H10 MDL Number: MFCD00077264 Synonym: Xylol,Dimethylbenzene
o-Xylene, 99%, Thermo Scientific Chemicals
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
Dexmedetomidine hydrochloride, Tocris Bioscience™
CAS: 145108-58-3 Molecular Formula: C13H17ClN2 Molecular Weight (g/mol): 236.743 InChI Key: VPNGEIHDPSLNMU-MERQFXBCSA-N Synonym: dexmedetomidine hydrochloride,dexmedetomidine hcl,precedex,4-s-alpha,2,3-trimethylbenzyl imidazole monohydrochloride,unii-1018wh7f9i,dexmedetomidine hcl precedex,s-5-1-2,3-dimethylphenyl ethyl-1h-imidazole hydrochloride,dexdor,4-1s-1-2,3-dimethylphenyl ethyl-1h-imidazole hydrochloride PubChem CID: 6918081 ChEBI: CHEBI:31472 IUPAC Name: 5-[(1S)-1-(2,3-dimethylphenyl)ethyl]-1H-imidazole;hydrochloride SMILES: CC1=C(C(=CC=C1)C(C)C2=CN=CN2)C.Cl
M-Xylene, Certified Reference Material, MilliporeSigma™ Supelco™
Pharmaceutical secondary standards for application in quality control. Provides pharma laboratories and manufacturers with a convenient, and cost-effective alternative to the preparation of in-house working standards.
Xylenes, Reagent, ACS, Spectrum™ Chemical
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
Medetomidine hydrochloride, Tocris Bioscience™
CAS: 86347-15-1 Molecular Formula: C13H17ClN2 Molecular Weight (g/mol): 236.743 InChI Key: VPNGEIHDPSLNMU-UHFFFAOYSA-N Synonym: medetomidine hydrochloride,medetomidine hcl,domitor,precedex,4-1-2,3-dimethylphenyl ethyl-1h-imidazole hydrochloride,medetomidine hydrochloride usan,+--4-alpha,2,3-trimethylbenzyl imidazole monohydrochloride,1h-imidazole, 4-1-2,3-dimethylphenyl ethyl-, monohydrochloride PubChem CID: 68601 ChEBI: CHEBI:48556 IUPAC Name: 5-[1-(2,3-dimethylphenyl)ethyl]-1H-imidazole;hydrochloride SMILES: CC1=C(C(=CC=C1)C(C)C2=CN=CN2)C.Cl
Bis(3,5-dimethylphenyl)phosphine Oxide 96.0+%, TCI America™
CAS: 187344-92-9 Molecular Formula: C16H18OP+ Molecular Weight (g/mol): 257.293 MDL Number: MFCD08458884 InChI Key: LMXRTXPFJNGAAX-UHFFFAOYSA-N Synonym: bis 3,5-dimethylphenyl phosphine oxide,xyl 2p o h,phosphine oxide,bis 3,5-dimethylphenyl,phosphine oxide, bis 3,5-dimethylphenyl,1-3,5-dimethylphenyl phosphoryl-3,5-dimethylbenzene,1-3,5-dimethylphenylphosphoroso-3,5-dimethylbenzene,ksc496c0h,bis 3,5-dimethylphenyl phosphi,3-4-nitrophenyl-beta-alanine,awaysumoanjulo-uhfffaoysa-n PubChem CID: 12022244 IUPAC Name: bis(3,5-dimethylphenyl)-oxophosphanium SMILES: CC1=CC(=CC(=C1)[P+](=O)C2=CC(=CC(=C2)C)C)C
5-Bromo-2-fluoro-m-xylene 97.0+%, TCI America™
CAS: 99725-44-7 Molecular Formula: C8H8BrF Molecular Weight (g/mol): 203.054 MDL Number: MFCD01320701 InChI Key: ZXPHUVHMBKRRJF-UHFFFAOYSA-N Synonym: 5-bromo-2-fluoro-m-xylene,5-bromo-2-fluoro-3-xylene,4-bromo-2,6-dimethylfluorobenzene,1-bromo-4-fluoro-3,5-dimethylbenzene,5-bromo-2-fluoro-1,3-xylene,benzene, 5-bromo-2-fluoro-1,3-dimethyl,3,5-dimethyl-4-fluorobromobenzene,5-bromo-2-fluoro-1,3-dimethyl-benzene,ksc486i9j PubChem CID: 2736298 IUPAC Name: 5-bromo-2-fluoro-1,3-dimethylbenzene SMILES: CC1=CC(=CC(=C1F)C)Br
o-Xylene, 99%, Extra Dry, AcroSeal™, Thermo Scientific Chemicals
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-Iodo-m-xylene 98.0+%, TCI America™
CAS: 22445-41-6 Molecular Formula: C8H9I Molecular Weight (g/mol): 232.06 MDL Number: MFCD00060659 InChI Key: ZLMKEENUYIUKKC-UHFFFAOYSA-N Synonym: 5-iodo-m-xylene,1,3-dimethyl-5-iodobenzene,benzene, 1-iodo-3,5-dimethyl,3,5-dimethyliodobenzene,pubchem3872,acmc-1ccdf,3,5-dimethyl-1-iodobenzene,ksc422q9l,1-iodo-3,5-dimethylbenzene,# PubChem CID: 140924 IUPAC Name: 1-iodo-3,5-dimethylbenzene SMILES: CC1=CC(I)=CC(C)=C1