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
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
4-Benzyloxy-3,5-dimethylbenzoic acid, 98+%
CAS: 97888-80-7 Molecular Formula: C16H16O3 Molecular Weight (g/mol): 256.301 MDL Number: MFCD00272572 InChI Key: JABUPJCJZZNUFK-UHFFFAOYSA-N Synonym: 4-benzyloxy-3,5-dimethylbenzoic acid,4-benzyloxy-3,5-dimethyl-benzoic acid,3,5-dimethyl-4-phenylmethoxy benzoic acid,4-benzyloxy-3,5-dimethyl-benzoate PubChem CID: 2733993 IUPAC Name: 3,5-dimethyl-4-phenylmethoxybenzoic acid SMILES: CC1=CC(=CC(=C1OCC2=CC=CC=C2)C)C(=O)O
2,4-Dimethylbenzoic acid, 97%
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
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
2,3-Dimethylphenylacetic acid, 95%
CAS: 30981-98-7 Molecular Formula: C10H12O2 Molecular Weight (g/mol): 164.20 MDL Number: MFCD03844736 InChI Key: AMPNBNGNPLXMOP-UHFFFAOYSA-N Synonym: 2,3-dimethylphenylacetic acid,2-2,3-dimethylphenyl acetic acid,2,3-dimethylbenzeneacetic acid,dimethylbenzeneacetic acid,2,3-dimethylphenyl acetic acid,2,3-dimethylphenylaceticacid,xylene-acetic acid,pubchem2466,acmc-1cldr,2-2,3-dimethylphenyl aceticacid PubChem CID: 20572731 IUPAC Name: 2-(2,3-dimethylphenyl)acetic acid SMILES: CC1=C(C)C(CC(O)=O)=CC=C1
4-Chloro-2,5-dimethylbenzenesulfonyl chloride, 98%
CAS: 88-49-3 Molecular Formula: C8H8Cl2O2S Molecular Weight (g/mol): 239.11 MDL Number: MFCD00044017 InChI Key: JBYZPUBAISWVDI-UHFFFAOYSA-N Synonym: 5-chloro-p-xylene-2-sulphonyl chloride,4-chloro-2,5-dimethylbenzene-1-sulfonyl chloride,4-chloro-2, 5-dimethylphenylsulfonyl chloride,2,5-dimethyl-4-chlorobenzenesulfonyl chloride,chloro 4-chloro-2,5-dimethylphenyl sulfone,pubchem5091,4-chloro-2,5-dimethylbenzenesulfonylchloride,4-chloro 2,5-dimethylphenylsulfonylchloride,4-chloro-2,5-dimethylphenylsulfonyl chloride,4-chloro-2,5-dimethyl-benzenesulfonyl chloride PubChem CID: 66618 IUPAC Name: 4-chloro-2,5-dimethylbenzenesulfonyl chloride SMILES: CC1=CC(=C(C)C=C1Cl)S(Cl)(=O)=O
2,5-Dimethylphenyl isocyanate, 97%
CAS: 40397-98-6 Molecular Formula: C9H9NO Molecular Weight (g/mol): 147.18 MDL Number: MFCD00013854 InChI Key: SOXVXJQIQVOCAY-UHFFFAOYSA-N Synonym: 2,5-dimethylphenyl isocyanate,2,5-dimethylphenylisocyanate,benzene, 2-isocyanato-1,4-dimethyl,2,5-dimethyl phenylisocyanate,2,5-dimethylbenzenisocyanate,acmc-1art9,1-isocyanato-2,5-dimethyl-benzene PubChem CID: 98605 ChEBI: CHEBI:60097 IUPAC Name: 2-isocyanato-1,4-dimethylbenzene SMILES: CC1=CC=C(C)C(=C1)N=C=O
2,3-Dimethylphenyl isocyanate, 99%
CAS: 1591-99-7 Molecular Formula: C9H9NO Molecular Weight (g/mol): 147.177 MDL Number: MFCD00013851 InChI Key: KNHJIEOCVVIBIV-UHFFFAOYSA-N Synonym: 2,3-dimethylphenyl isocyanate,2,3-dimethylphenylisocyanate,benzene, isocyanatodimethyl,2,3-dimethylbenzenisocyanate,dimethylphenyl isocyanate,acmc-1bttc,1-isocyanato-2,3-dimethyl-benzene,#,benzene,1-isocyanato-2,3-dimethyl PubChem CID: 137096 ChEBI: CHEBI:63899 IUPAC Name: 1-isocyanato-2,3-dimethylbenzene SMILES: CC1=C(C(=CC=C1)N=C=O)C
3,5-Dimethylphenyl isocyanate, 97%
CAS: 54132-75-1 Molecular Formula: C9H9NO Molecular Weight (g/mol): 147.177 MDL Number: MFCD00013868 InChI Key: DZSGDHNHQAJZCO-UHFFFAOYSA-N Synonym: 3,5-dimethylphenyl isocyanate,3,5-dimethylphenylisocyanate,3,5-xylyl isocyanate,benzene, 1-isocyanato-3,5-dimethyl,isocyanic acid 3,5-dimethylphenyl ester,5-isocyanato-m-xylene,1-isocyanato-3,5-dimethyl-benzene,acmc-1axct,3,5-dimethylbenzenisocyanate,ksc274i2t PubChem CID: 521488 IUPAC Name: 1-isocyanato-3,5-dimethylbenzene SMILES: CC1=CC(=CC(=C1)N=C=O)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