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.
4,5-Dimethyl-o-phenylenediamine, 98%
CAS: 3171-45-7 Molecular Formula: C8H12N2 Molecular Weight (g/mol): 136.20 MDL Number: MFCD00007729 InChI Key: XSZYBMMYQCYIPC-UHFFFAOYSA-N Synonym: 4,5-dimethyl-1,2-phenylenediamine,4,5-diamino-o-xylene,4,5-dimethyl-o-phenylenediamine,1,2-benzenediamine, 4,5-dimethyl,1,2-diamino-4,5-dimethylbenzene,4,5-dimethyl-1,2-benzenediamine,4,5-dimethyl-benzene-1,2-diamine,4,5-dimethyl-ortho-phenylenediamine,4,5-dimethylphenylene-1,2-diamine,4,5-dimethyl-o-phenylenediamine monohydrate PubChem CID: 76635 IUPAC Name: 4,5-dimethylbenzene-1,2-diamine SMILES: CC1=CC(N)=C(N)C=C1C
2,3-Dimethylbenzeneboronic acid, 98%
CAS: 183158-34-1 Molecular Formula: C8H11BO2 Molecular Weight (g/mol): 149.984 MDL Number: MFCD01863524 InChI Key: ZYYANAWVBDFAHY-UHFFFAOYSA-N Synonym: 2,3-dimethylbenzeneboronic acid,2,3-dimethylphenyl boronic acid,o-xylene-3-boronic acid,2,3-dimethylphenyl boranediol,2,3-dimethylbenzeneboronicacid,2,3-dimethylphenylboronicacid,pubchem5037,acmc-1bxk2,amtb394,ksc174k9l PubChem CID: 2773395 IUPAC Name: (2,3-dimethylphenyl)boronic acid SMILES: B(C1=C(C(=CC=C1)C)C)(O)O
5-Fluoro-m-xylene, 97%
CAS: 461-97-2 Molecular Formula: C8H9F Molecular Weight (g/mol): 124.158 MDL Number: MFCD00052366 InChI Key: RCWIWNUVHNAUQC-UHFFFAOYSA-N Synonym: 3,5-dimethylfluorobenzene,5-fluoro-m-xylene,1,3-dimethyl-5-fluorobenzene,benzene, 1-fluoro-3,5-dimethyl,pubchem4410,5-fluoro-1,3-xylene,acmc-1ahss,3,5-dimethyl-fluorobenzene,3,5-dimethylphenyl fluoride,ksc497s5r PubChem CID: 521192 IUPAC Name: 1-fluoro-3,5-dimethylbenzene SMILES: CC1=CC(=CC(=C1)F)C
Xylenes, extra pure, mixture of isomers
CAS: 1330-20-7 Molecular Formula: C8H10 Synonym: Dimethylbenzene
2,3-Dimethylanisole, 97%
CAS: 2944-49-2 Molecular Formula: C9H12O Molecular Weight (g/mol): 136.194 MDL Number: MFCD00008376 InChI Key: BLMBNEVGYRXFNA-UHFFFAOYSA-N Synonym: 2,3-dimethylanisole,3-methoxy-o-xylene,benzene, 1-methoxy-2,3-dimethyl,benzene, methoxydimethyl,1,2-dimethyl-6-methoxybenzene,1-methoxy-2,3-dimethyl-benzene,dimethylanisole,pubchem4114,2,3-dimethyl anisole,2,3-dimethyl-anisole PubChem CID: 76269 IUPAC Name: 1-methoxy-2,3-dimethylbenzene SMILES: CC1=C(C(=CC=C1)OC)C
2-Iodo-m-xylene, 98%
CAS: 608-28-6 Molecular Formula: C8H9I Molecular Weight (g/mol): 232.064 MDL Number: MFCD00019012 InChI Key: QTUGGVBKWIYQSS-UHFFFAOYSA-N Synonym: 2-iodo-m-xylene,2,6-dimethyliodobenzene,m-xylene, 2-iodo,benzene, 2-iodo-1,3-dimethyl,1,3-dimethyl-2-iodobenzene,2-iodo-1,3-dimethyl-benzene,2,6-dimethyl-1-iodobenzene,2-iodo-o-xylene,pubchem3867,acmc-1axwc PubChem CID: 69097 IUPAC Name: 2-iodo-1,3-dimethylbenzene SMILES: CC1=C(C(=CC=C1)C)I
Xylenes, contains ethylbenzene, BAKER ANALYZED™ A.C.S. Reagent, J.T. Baker™
CAS: 1330-20-7 Molecular Formula: C6H4(CH3)2
4-Bromo-2,6-dimethylaniline, 98%
CAS: 24596-19-8 Molecular Formula: C8H10BrN Molecular Weight (g/mol): 200.08 MDL Number: MFCD00007826 InChI Key: QGLAYJCJLHNIGJ-UHFFFAOYSA-N Synonym: 4-bromo-2,6-xylidine,benzenamine, 4-bromo-2,6-dimethyl,4-bromo-2,6-dimethyl-phenylamine,2-amino-5-bromo-m-xylene,2,6-dimethyl-4-bromoaniline,4-bromo-2,6-dimethylbenzenamine,4-bromo-2,6-dimethylphenylamine,4-bromo-2,6-dimethyl-aniline,4-bromo-2,6-dimethylaniline,4-bromo-2,6-dimethyl-benzenamine PubChem CID: 90549 IUPAC Name: 4-bromo-2,6-dimethylaniline SMILES: CC1=CC(Br)=CC(C)=C1N
4-Chloro-2,6-dimethylaniline, 96%
CAS: 24596-18-7 Molecular Formula: C8H10ClN Molecular Weight (g/mol): 155.625 MDL Number: MFCD01076576 InChI Key: JCLZLZKUISPXDC-UHFFFAOYSA-N Synonym: 4-chloro-2,6-dimethyl-phenylamine,4-chloro-2,6-dimethylbenzenamine,2,6-dimethyl-4-chloroaniline,intermediates-zcf02661,acmc-20a53k,4-chlor-2,6-dimethylanilin,pharmabridge p-1739,4-chloro-2,6-dimethyl-aniline,4-chloro-2,6-xylidine,4-chloro-2,6-dimethylphenylamine PubChem CID: 5073362 IUPAC Name: 4-chloro-2,6-dimethylaniline SMILES: CC1=CC(=CC(=C1N)C)Cl
2,6-Dimethylphenyl isocyanate, 98%
CAS: 28556-81-2 Molecular Formula: C9H9NO Molecular Weight (g/mol): 147.18 MDL Number: MFCD00002012 InChI Key: YQLRKXVEALTVCZ-UHFFFAOYSA-N Synonym: 2,6-dimethylphenyl isocyanate,benzene, 2-isocyanato-1,3-dimethyl,2,6-dimethylphenylisocyanate,2,6-xylyl isocyanate,unii-2ql5mu0e0c,2ql5mu0e0c,isocyanic acid 2,6-dimethylphenyl ester,2,6-dimethylbenzenisocyanate,2,6-dimethyl phenyl isocyanate,2-isocyanato-1,3-dimethyl-benzene PubChem CID: 98787 IUPAC Name: 2-isocyanato-1,3-dimethylbenzene SMILES: CC1=CC=CC(C)=C1N=C=O
3,4-Dimethylphenylboronic acid, 97%, May contain varying amounts of anhydride, Thermo Scientific™
CAS: 55499-43-9 Molecular Formula: C8H11BO2 Molecular Weight (g/mol): 149.98 MDL Number: MFCD01009694 InChI Key: KDVZJKOYSOFXRV-UHFFFAOYSA-N Synonym: 3,4-dimethylphenyl boronic acid,3,4-dimethylbenzeneboronic acid,3,4-dimethylphenyl boranediol,3,4-dimethylphenylboronicacid,4-borono-o-xylene,boronic acid, 3,4-dimethylphenyl,pubchem1832,acmc-209lna,3.4-dimethylbenzeneboronic acid,3,4-dimethyl phenylboronic acid PubChem CID: 2734348 IUPAC Name: (3,4-dimethylphenyl)boronic acid SMILES: CC1=CC=C(C=C1C)B(O)O
2,2',5,5'-Tetramethylbiphenyl, 98%
CAS: 3075-84-1 Molecular Formula: C16H18 Molecular Weight (g/mol): 210.32 MDL Number: MFCD00151846 InChI Key: ZHTROMYSDSTCCE-UHFFFAOYSA-N PubChem CID: 137818 IUPAC Name: 2-(2,5-dimethylphenyl)-1,4-dimethylbenzene SMILES: CC1=CC=C(C)C(=C1)C1=CC(C)=CC=C1C
m-Xylene, 99+%, extra pure
CAS: 108-38-3 Molecular Formula: C8H10 Molecular Weight (g/mol): 106.17 MDL Number: MFCD00008536 InChI Key: IVSZLXZYQVIEFR-UHFFFAOYSA-N Synonym: m-xylene,1,3-dimethylbenzene,m-xylol,m-dimethylbenzene,meta-xylene,m-methyltoluene,3-xylene,benzene, 1,3-dimethyl,1,3-dimethylbenzol,santosol 150 PubChem CID: 7929 ChEBI: CHEBI:28488 IUPAC Name: 1,3-xylene SMILES: CC1=CC(C)=CC=C1
2-Fluoro-1,3-dimethylbenzene, 97%, Thermo Scientific™
CAS: 443-88-9 Molecular Formula: C8H9F Molecular Weight (g/mol): 124.158 MDL Number: MFCD00039215 InChI Key: JTAUTNBVFDTYTI-UHFFFAOYSA-N Synonym: 2,6-dimethylfluorobenzene,2-fluoro-m-xylene,1-fluoro-2,6-dimethylbenzene,1,3-dimethyl-2-fluorobenzene,benzene, 2-fluoro-1,3-dimethyl,2,6-dimethyl fluorobenzene,2-fluoro-1,3-dimethyl-benzene,fr b1 f1,pubchem4407,2-fluoro-3-methyltoluene PubChem CID: 123065 IUPAC Name: 2-fluoro-1,3-dimethylbenzene SMILES: CC1=C(C(=CC=C1)C)F
1-(2,4-Dimethylphenyl)ethanol, 95%
CAS: 5379-19-1 Molecular Formula: C10H14O Molecular Weight (g/mol): 150.221 MDL Number: MFCD00060890 InChI Key: DNHQUGRUHBFDFT-UHFFFAOYSA-N Synonym: 1-2,4-dimethylphenyl ethanol,1-2,4-dimethylphenyl ethan-1-ol,1-2,4-dimethylbenzene-1-ethanol PubChem CID: 21475 IUPAC Name: 1-(2,4-dimethylphenyl)ethanol SMILES: CC1=CC(=C(C=C1)C(C)O)C