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-Chloro-o-xylene 98.0+%, TCI America™
CAS: 615-60-1 Molecular Formula: C8H9Cl Molecular Weight (g/mol): 140.61 MDL Number: MFCD00000596 InChI Key: HNQLMBJUMVLFCF-UHFFFAOYSA-N Synonym: 4-chloro-o-xylene,3,4-dimethylchlorobenzene,1-chloro-3,4-dimethylbenzene,benzene, 4-chloro-1,2-dimethyl,o-xylene, 4-chloro,4-chloro-ortho-xylene,4-chloro-1,2-xylene,unii-qo24waw04q,qo24waw04q,pubchem3641 PubChem CID: 32886 IUPAC Name: 4-chloro-1,2-dimethylbenzene SMILES: CC1=C(C=C(C=C1)Cl)C
1-(2,6-Dimethylphenoxy)-2-propanone 95.0+%, TCI America™
CAS: 53012-41-2 Molecular Formula: C11H14O2 Molecular Weight (g/mol): 178.231 MDL Number: MFCD00130266 InChI Key: XDJULAUHYAJQBU-UHFFFAOYSA-N Synonym: (2,6-Dimethylphenoxy)acetone PubChem CID: 104378 IUPAC Name: 1-(2,6-dimethylphenoxy)propan-2-one SMILES: CC1=C(C(=CC=C1)C)OCC(=O)C
o-Xylene 98.0+%, TCI America™
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
2,5-Dichloro-p-xylene 97.0+%, TCI America™
CAS: 1124-05-6 Molecular Formula: C8H8Cl2 Molecular Weight (g/mol): 175.052 MDL Number: MFCD00000610 InChI Key: UTGSRNVBAFCOEU-UHFFFAOYSA-N Synonym: 2,5-dichloro-p-xylene,2,5-dichloro-1,4-dimethylbenzene,benzene, 1,4-dichloro-2,5-dimethyl,p-xylene, 2,5-dichloro,unii-7p8m86zob2,2,5-dichloro-para-xylene,p-xylene,5-dichloro,p-xylene,2,5-dichloro,acmc-2099eq,dsstox_cid_24780 PubChem CID: 70755 IUPAC Name: 1,4-dichloro-2,5-dimethylbenzene SMILES: CC1=CC(=C(C=C1Cl)C)Cl
p-Xylene 99.0+%, TCI America™
CAS: 106-42-3 Molecular Formula: C8H10 Molecular Weight (g/mol): 106.17 MDL Number: MFCD00008556 InChI Key: URLKBWYHVLBVBO-UHFFFAOYSA-N Synonym: p-xylene,para-xylene,1,4-dimethylbenzene,p-methyltoluene,p-dimethylbenzene,p-xylol,benzene, 1,4-dimethyl,4-xylene,chromar,4-methyltoluene PubChem CID: 7809 ChEBI: CHEBI:27417 IUPAC Name: 1,4-xylene SMILES: CC1=CC=C(C)C=C1
1,2-Dibromo-4,5-dimethylbenzene 98.0+%, TCI America™
CAS: 24932-48-7 Molecular Formula: C8H8Br2 Molecular Weight (g/mol): 263.96 MDL Number: MFCD00082743 InChI Key: BCIDDURGCAHERU-UHFFFAOYSA-N PubChem CID: 34347 IUPAC Name: 1,2-dibromo-4,5-dimethylbenzene SMILES: CC1=CC(Br)=C(Br)C=C1C
4-Ethyl-m-xylene 95.0+%, TCI America™
CAS: 874-41-9 Molecular Formula: C10H14 Molecular Weight (g/mol): 134.222 MDL Number: MFCD00039905 InChI Key: MEMBJMDZWKVOTB-UHFFFAOYSA-N Synonym: 4-ethyl-m-xylene,1,3-dimethyl-4-ethylbenzene,benzene, 1-ethyl-2,4-dimethyl,m-xylene, 4-ethyl,1,3-dimethyl-4-ethyl benzene,benzene,1-ethyl-2,4-dimethyl,4-ethyl-1,3-xylene,acmc-1blmc,2,4-dimethylethylbenzene,2,4-dimethyl-1-ethylbenzene PubChem CID: 13403 IUPAC Name: 1-ethyl-2,4-dimethylbenzene SMILES: CCC1=C(C=C(C=C1)C)C
3,4-Dimethylnitrobenzene 98.0+%, TCI America™
CAS: 99-51-4 Molecular Formula: C8H9NO2 Molecular Weight (g/mol): 151.17 MDL Number: MFCD00007268 InChI Key: HFZKOYWDLDYELC-UHFFFAOYSA-N Synonym: 4-nitro-o-xylene,p-nitro-o-xylene,o-xylene, 4-nitro,benzene, 1,2-dimethyl-4-nitro,para-nitro-ortho-xylene,3,4-dimethyl-1-nitrobenzene,4-nitro-1,2-dimethylbenzene,1,2-dimethyl-4-nitrobenzol,3,4-dimethylnitrobenzene,ccris 3118 PubChem CID: 7440 IUPAC Name: 1,2-dimethyl-4-nitrobenzene SMILES: CC1=CC=C(C=C1C)[N+]([O-])=O
5-Bromo-m-xylene 98.0+%, TCI America™
CAS: 556-96-7 Molecular Formula: C8H9Br Molecular Weight (g/mol): 185.064 MDL Number: MFCD00000087 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
2,6-Dimethylbenzonitrile 98.0+%, TCI America™
CAS: 6575-13-9 Molecular Formula: C9H9N Molecular Weight (g/mol): 131.178 MDL Number: MFCD00037166 InChI Key: QSACPWSIIRFHHR-UHFFFAOYSA-N Synonym: benzonitrile, 2,6-dimethyl,unii-1zh37s5b0z,2,6-dimethylbenzenecarbonitrile,2,6-dimethyl-benzonitrile,2-cyano-m-xylene,ksc494c5t,2,6-dimethylbenz0nitrile,3-cyano-2,4-dimethylphenyl PubChem CID: 81057 IUPAC Name: 2,6-dimethylbenzonitrile SMILES: CC1=C(C(=CC=C1)C)C#N
2-Bromo-m-xylene 98.0+%, TCI America™
CAS: 576-22-7 Molecular Formula: C8H9Br Molecular Weight (g/mol): 185.064 MDL Number: MFCD00000075 InChI Key: MYMYVYZLMUEVED-UHFFFAOYSA-N Synonym: 2,6-dimethylbromobenzene,2-bromo-m-xylene,1-bromo-2,6-dimethylbenzene,benzene, 2-bromo-1,3-dimethyl,2,6-dimethyl bromobenzene,m-xylene, 2-bromo,2,6-dimethylphenyl bromide,2-bromo-meta-xylene,2-bromo-1,3-dimethyl-benzene,pubchem3206 PubChem CID: 68471 IUPAC Name: 2-bromo-1,3-dimethylbenzene SMILES: CC1=C(C(=CC=C1)C)Br
3-Bromo-o-xylene 98.0+%, TCI America™
CAS: 576-23-8 Molecular Formula: C8H9Br Molecular Weight (g/mol): 185.06 MDL Number: MFCD00000069 InChI Key: WLPXNBYWDDYJTN-UHFFFAOYSA-N Synonym: 3-bromo-o-xylene,3-bromo-1,2-dimethylbenzene,2,3-dimethylbromobenzene,2,3-dimethyl bromobenzene,benzene, bromodimethyl,1-bromo-2,3-dimethyl-benzene,benzene, 1-bromo-2,3-dimethyl,bromoxilene,xylylbromid,bromo-o-xylene PubChem CID: 68472 IUPAC Name: 1-bromo-2,3-dimethylbenzene SMILES: CC1=CC=CC(Br)=C1C
3,5-Dimethylanisole 98.0+%, TCI America™
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-Dimethylphenol 98.0+%, TCI America™
CAS: 95-87-4 Molecular Formula: C8H10O Molecular Weight (g/mol): 122.17 MDL Number: MFCD00002237 InChI Key: NKTOLZVEWDHZMU-UHFFFAOYSA-N Synonym: 2,5-xylenol,p-xylenol,phenol, 2,5-dimethyl,3,6-dimethylphenol,6-methyl-m-cresol,3,6-xylenol,2,5-dimethyl phenol,2,5-dmp,1,2,5-xylenol,1-hydroxy-2,5-dimethylbenzene PubChem CID: 7267 IUPAC Name: 2,5-dimethylphenol SMILES: CC1=CC=C(C)C(O)=C1
4-Chloro-m-xylene 98.0+%, TCI America™
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