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 (Histological), Fisher Chemical™
CAS: 1330-20-7 Molecular Formula: C8H10 MDL Number: MFCD00077264 Synonym: Xylol,Dimethylbenzene
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
4-Fluoro-o-xylene, 98%
CAS: 452-64-2 Molecular Formula: C8H9F Molecular Weight (g/mol): 124.158 MDL Number: MFCD00039217 InChI Key: WYHBENDEZDFJNU-UHFFFAOYSA-N Synonym: 4-fluoro-o-xylene,1,2-dimethyl-4-fluorobenzene,3,4-dimethylfluorobenzene,4-fluoro-1,2-xylene,1-fluoro-3,4-dimethylbenzene,benzene, 4-fluoro-1,2-dimethyl,o-xylene, 4-fluoro,pubchem14118,acmc-1afww,3,4-dimethyl fluorobenzene PubChem CID: 253306 IUPAC Name: 4-fluoro-1,2-dimethylbenzene SMILES: CC1=C(C=C(C=C1)F)C
3,4-Dimethylbenzeneboronic acid, 98+%
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
2,5-Dimethylbenzenesulfonic acid hydrate, 98%
CAS: 609-54-1 Molecular Formula: C8H10O3S Molecular Weight (g/mol): 186.23 MDL Number: MFCD00151010 InChI Key: IRLYGRLEBKCYPY-UHFFFAOYSA-N Synonym: p-xylene-2-sulfonic acid,unii-l1sea5qnp9,p-xylene-2-sulphonic acid,benzenesulfonic acid, 2,5-dimethyl,l1sea5qnp9,2,4-xylenesulfonic acid hydrate,2,5-dimethyl-benzenesulfonic acid,2,5-xylenesulfonic acid,p-xylenesulfonic acid,dsstox_cid_21641 PubChem CID: 11868 IUPAC Name: 2,5-dimethylbenzenesulfonic acid SMILES: CC1=CC=C(C)C(=C1)S(O)(=O)=O
N,N,3,5-Tetramethylaniline, 98%
CAS: 4913-13-7 Molecular Formula: C10H15N Molecular Weight (g/mol): 149.237 MDL Number: MFCD00008307 InChI Key: NBFRQCOZERNGEX-UHFFFAOYSA-N Synonym: benzenamine, n,n,3,5-tetramethyl,n,n-dimethyl-3,5-xylidine,3,5-xylidine, n,n-dimethyl,3,5-dimethylphenyl dimethylamine,acmc-209kew,5-dimethylamino-m-xylene,3,5,n,n-tetramethylaniline,n,n-dimethyl-sym-m-xylidine,n,n,3,5-tetramethyl aniline,n,n-3,5-tetramethylbenzenamine PubChem CID: 78625 IUPAC Name: N,N,3,5-tetramethylaniline SMILES: CC1=CC(=CC(=C1)N(C)C)C
3,4-Dimethylphenylacetic acid, 98%
CAS: 17283-16-8 Molecular Formula: C10H11O2 Molecular Weight (g/mol): 163.20 MDL Number: MFCD02664684 InChI Key: OTTPBKINJOYJGW-UHFFFAOYSA-M PubChem CID: 296013 IUPAC Name: 2-(3,4-dimethylphenyl)acetic acid SMILES: CC1=CC=C(CC([O-])=O)C=C1C
2,4-Dimethylphenol, 99%
CAS: 105-67-9 Molecular Formula: C8H10O Molecular Weight (g/mol): 122.17 MDL Number: MFCD00002233 InChI Key: KUFFULVDNCHOFZ-UHFFFAOYSA-N Synonym: 2,4-xylenol,phenol, 2,4-dimethyl,gallex,4,6-dimethylphenol,1-hydroxy-2,4-dimethylbenzene,4-hydroxy-1,3-dimethylbenzene,rcra waste number u101,2,4-dimethyl phenol,caswell no. 907a,lysol brand disinfectant PubChem CID: 7771 ChEBI: CHEBI:34241 IUPAC Name: 2,4-dimethylphenol SMILES: CC1=CC(=C(C=C1)O)C
5-Bromo-m-xylene, 98%
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-Iodo-p-xylene, 98+%
CAS: 1122-42-5 Molecular Formula: C8H9I Molecular Weight (g/mol): 232.064 MDL Number: MFCD00013708 InChI Key: WYZVNUSNUCABRF-UHFFFAOYSA-N Synonym: 2-iodo-p-xylene,1,4-dimethyl-2-iodobenzene,p-xylene, 2-iodo,1-iodo-2,5-dimethylbenzene,benzene, 2-iodo-1,4-dimethyl,2-iodo-4-xylene,2,5-dimethyliodobenzene,2-iodo-1,4-dimethyl-benzene,2,5-dimethyl-1-iodobenzene,pubchem3875 PubChem CID: 70731 IUPAC Name: 2-iodo-1,4-dimethylbenzene SMILES: CC1=CC(=C(C=C1)C)I
2,6-Dimethylbenzeneboronic acid, 97%
CAS: 100379-00-8 Molecular Formula: C8H11BO2 Molecular Weight (g/mol): 149.98 MDL Number: MFCD01009693 InChI Key: ZXDTWWZIHJEZOG-UHFFFAOYSA-N Synonym: 2,6-dimethylphenyl boronic acid,2,6-dimethylbenzeneboronic acid,2,6-dimethylphenyl boranediol,2,6-dimethylboronic acid,m-xylene-2-boronic acid,2,6-dimethyl-phenylboronic acid,boronic acid, 2,6-dimethylphenyl,2-borono-m-xylene,pubchem16357,acmc-1c3za PubChem CID: 583322 IUPAC Name: (2,6-dimethylphenyl)boronic acid SMILES: CC1=CC=CC(C)=C1B(O)O
O-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.
2,6-Dimethylbenzoic acid, 98+%
CAS: 632-46-2 Molecular Formula: C9H10O2 Molecular Weight (g/mol): 150.177 MDL Number: MFCD00002483 InChI Key: HCBHQDKBSKYGCK-UHFFFAOYSA-N Synonym: benzoic acid, 2,6-dimethyl,2,6-dimethylbenzoicacid,2,6-dimethyl-benzoic acid,vic-m-xylylic acid,2,6-dimethyl benzoic acid,m-xylene-2-carboxylic acid,2,6-dimethylbenzene carboxylic acid,benzoic acid, 2,6-dimethyl-7ci,8ci,9ci,zlchem 286,vic.-m-xylylic acid PubChem CID: 12439 ChEBI: CHEBI:64827 IUPAC Name: 2,6-dimethylbenzoic acid SMILES: CC1=C(C(=CC=C1)C)C(=O)O
4-Bromo-o-xylene, 97%
CAS: 583-71-1 Molecular Formula: C8H9Br Molecular Weight (g/mol): 185.064 MDL Number: MFCD00000086 InChI Key: QOGHRLGTXVMRLM-UHFFFAOYSA-N Synonym: 4-bromo-o-xylene,3,4-dimethylbromobenzene,1-bromo-3,4-dimethylbenzene,benzene, 4-bromo-1,2-dimethyl,3,4-xylyl bromide,4-bromo-1,2-xylene,4-bromo-1,2-dimethyl-benzene,3,4-dimethylphenyl bromide,4-bromo-ortho-xylene,o-xylene, 4-bromo PubChem CID: 68504 IUPAC Name: 4-bromo-1,2-dimethylbenzene SMILES: CC1=C(C=C(C=C1)Br)C