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
2,6-Dimethylanisole, 98+%
CAS: 1004-66-6 Molecular Formula: C9H12O Molecular Weight (g/mol): 136.19 MDL Number: MFCD00008380 InChI Key: GFNZJAUVJCGWLW-UHFFFAOYSA-N Synonym: 2,6-dimethylanisole,2-methoxy-m-xylene,benzene, 2-methoxy-1,3-dimethyl,1,3-dimethyl-2-methoxybenzene,pubchem4115,2,6-dimethyl anisole,acmc-1buuc,ksc493q8r,2,6-dimethylphenyl methyl ether PubChem CID: 66088 IUPAC Name: 2-methoxy-1,3-dimethylbenzene SMILES: COC1=C(C)C=CC=C1C
3,5-Dimethylbenzeneboronic acid, 98%
CAS: 172975-69-8 Molecular Formula: C8H11BO2 Molecular Weight (g/mol): 149.984 MDL Number: MFCD00185689 InChI Key: DJGHSJBYKIQHIK-UHFFFAOYSA-N Synonym: 3,5-dimethylphenyl boronic acid,3,5-dimethylbenzeneboronic acid,3,5-dimethylphenyl boranediol,m-xylene-5-boronic acid,boronic acid, 3,5-dimethylphenyl,pubchem1833,acmc-209e5l,ksc174i6l,3.5-dimethylphenylboronic acid PubChem CID: 2734349 IUPAC Name: (3,5-dimethylphenyl)boronic acid SMILES: B(C1=CC(=CC(=C1)C)C)(O)O
4,5-Dimethyl-2-nitroaniline, 97%
CAS: 6972-71-0 Molecular Formula: C8H10N2O2 Molecular Weight (g/mol): 166.18 MDL Number: MFCD00007811 InChI Key: PINGKGKKUSYUAW-UHFFFAOYSA-N Synonym: 6-nitro-3,4-xylidine,benzenamine, 4,5-dimethyl-2-nitro,3,4-xylidine, 6-nitro,2-nitro-4,5-dimethylaniline,4,5-dimethyl-2-nitrophenylamine,2-nitro-4,5-xylidine,3,4-dimethyl-6-nitroaniline,acmc-20amrx,3, 6-nitro,4-amino-5-nitro-o-xylene PubChem CID: 81445 IUPAC Name: 4,5-dimethyl-2-nitroaniline SMILES: CC1=CC(=C(C=C1C)[N+](=O)[O-])N
2,4-Dimethylbenzoic acid, 98%
CAS: 611-01-8 Molecular Formula: C9H10O2 Molecular Weight (g/mol): 150.18 MDL Number: MFCD00002480 InChI Key: BKYWPNROPGQIFZ-UHFFFAOYSA-N Synonym: benzoic acid, 2,4-dimethyl,4-carboxy-1,3-dimethylbenzene,2,4-dimethyl benzoic acid,m-xylene-4-carboxylic acid,2,4-dimethyl-benzoic acid,2,4-dimethylbenzoicacid,m-xylylic acid,pubchem15441,2,4 dimethylbenzoic acid,benzoic acid,4-dimethyl PubChem CID: 11897 ChEBI: CHEBI:64811 IUPAC Name: 2,4-dimethylbenzoic acid SMILES: CC1=CC=C(C(O)=O)C(C)=C1
Xylenes, 99+%, for residue analysis, mixed, electronic use grade
CAS: 1330-20-7 Molecular Formula: C8H10 MDL Number: MFCD00077264 Synonym: Dimethylbenzene
3,5-Dimethylanisole, 99%
CAS: 874-63-5 Molecular Formula: C9H12O Molecular Weight (g/mol): 136.194 MDL Number: MFCD00008398 InChI Key: JCHJBEZBHANKGA-UHFFFAOYSA-N Synonym: 3,5-dimethylanisole,5-methoxy-m-xylene,benzene, 1-methoxy-3,5-dimethyl,1-methoxy-3,5-dimethyl-benzene,3,5-dimethylanisol,3,5-dimethylanizole,acmc-1bkxt,anisole, 3,5-dimethyl,ksc494e7h,5-methoxy-1,3-dimethylbenzene PubChem CID: 70126 IUPAC Name: 1-methoxy-3,5-dimethylbenzene SMILES: CC1=CC(=CC(=C1)OC)C
2,5-Dimethylbenzeneboronic acid, 98%
CAS: 85199-06-0 Molecular Formula: C8H11BO2 Molecular Weight (g/mol): 149.98 MDL Number: MFCD01863525 InChI Key: OOMZKLJLVGQZGV-UHFFFAOYSA-N Synonym: 2,5-dimethylphenyl boronic acid,2,5-dimethylbenzeneboronic acid,2,5-dimethylphenylboronicacid,2,5-dimethylphenyl boranediol,p-xylene-2-boronic acid,boronic acid, 2,5-dimethylphenyl,pubchem1831,p-xyleneboronic acid,ksc448a1r,2,5-dimehylphenylboronic acid PubChem CID: 2734347 IUPAC Name: (2,5-dimethylphenyl)boronic acid SMILES: CC1=CC=C(C)C(=C1)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
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
2,4-Dimethylphenyl isocyanate, 98+%
CAS: 51163-29-2 Molecular Formula: C9H9NO Molecular Weight (g/mol): 147.177 MDL Number: MFCD00013853 InChI Key: QUOBVYPFBJUOAJ-UHFFFAOYSA-N Synonym: 2,4-dimethylphenyl isocyanate,2,4-dimethylphenylisocyanate,benzene, 1-isocyanato-2,4-dimethyl,2,4-dimethylbenzenisocyanate,acmc-20aoc8,1-isocyanato-2,4-dimethyl-benzene PubChem CID: 5207585 IUPAC Name: 1-isocyanato-2,4-dimethylbenzene SMILES: CC1=CC(=C(C=C1)N=C=O)C
3,5-Dimethylphenylacetic acid, 98+%
CAS: 42288-46-0 Molecular Formula: C10H11O2 Molecular Weight (g/mol): 163.20 MDL Number: MFCD00082776 InChI Key: HDNBKTWQBJJYPD-UHFFFAOYSA-M Synonym: 3,5-dimethylphenylacetic acid,2-3,5-dimethylphenyl acetic acid,3,5-dimethylphenyl acetic acid,benzeneacetic acid, 3,5-dimethyl,3,5-xylyl acetic acid,acmc-20anc9,ksc238q4h,3,5-dimethylbenzeneacetic acid,3,5-dimethyl-phenyl-acetic acid PubChem CID: 4749495 IUPAC Name: 2-(3,5-dimethylphenyl)acetic acid SMILES: CC1=CC(CC([O-])=O)=CC(C)=C1
4-Chloro-m-xylene, 97%
CAS: 95-66-9 Molecular Formula: C8H9Cl Molecular Weight (g/mol): 140.61 MDL Number: MFCD00060644 InChI Key: UIEVCEQLNUHDIF-UHFFFAOYSA-N Synonym: 4-chloro-m-xylene,m-xylene, 4-chloro,2,4-dimethylchlorobenzene,benzene, 1-chloro-2,4-dimethyl,mxylene4chloro,1-chloro-2,4-dimethyl-benzene,4-chlor-m-xylol,pubchem3639,acmc-209rzq,4-chloro-meta-xylene PubChem CID: 523153 IUPAC Name: 1-chloro-2,4-dimethylbenzene SMILES: CC1=CC(=C(C=C1)Cl)C