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.
2,3-Dimethyl-4-fluoronitrobenzene 98.0+%, TCI America™
CAS: 1736-87-4 Molecular Formula: C8H8FNO2 Molecular Weight (g/mol): 169.155 MDL Number: MFCD05663712 InChI Key: GLDMIZKOJPVEIV-UHFFFAOYSA-N Synonym: 2,3-dimethyl-4-fluoronitrobenzene,3-fluoro-6-nitro-1,2-dimethylbenzene,3-fluoro-6-nitro-o-xylene,benzene, 1-fluoro-2,3-dimethyl-4-nitro,3-fluoro-1,2-dimethyl-6-nitrobenzene,4-fluoro-2,3-dimethyl nitrobenzene,intermediates-zcf02291,ksc534o2t,2,3-dimethyl-1-fluoro-4-nitrobenzene,4-fluoro-2,3-dimethyl-1-nitrobenzene PubChem CID: 24721201 IUPAC Name: 1-fluoro-2,3-dimethyl-4-nitrobenzene SMILES: CC1=C(C=CC(=C1C)F)[N+](=O)[O-]
3,4-Dimethylbenzoic Acid 99.0+%, TCI America™
CAS: 619-04-5 Molecular Formula: C9H10O2 Molecular Weight (g/mol): 150.177 MDL Number: MFCD00002524 InChI Key: OPVAJFQBSDUNQA-UHFFFAOYSA-N Synonym: benzoic acid, 3,4-dimethyl,3,4-dimethyl-benzoic acid,1-carboxy-3,4-dimethylbenzene,o-xylene-4-carboxylic acid,3,4-dimethylbenzoicacid,pubchem14893,3,4-dimethyl benzoic acid,asym-o-xylylic acid,acmc-1b5p1,3, 4 dimethyl benzoic acid PubChem CID: 12073 ChEBI: CHEBI:64818 IUPAC Name: 3,4-dimethylbenzoic acid SMILES: CC1=C(C=C(C=C1)C(=O)O)C
3-Fluoro-o-xylene 98.0+%, TCI America™
CAS: 443-82-3 Molecular Formula: C8H9F Molecular Weight (g/mol): 124.16 MDL Number: MFCD00000323 InChI Key: AWLDSXJCQWTJPC-UHFFFAOYSA-N Synonym: 3-fluoro-o-xylene,2,3-dimethylfluorobenzene,3-fluoro-1,2-xylene,o-xylene, 3-fluoro,3-fluoro-1,2-dimethylbenzene,benzene, 1-fluoro-2,3-dimethyl,1,2-dimethyl-3-fluorobenzene,1-fluoro-2,3-dimethyl-benzene,fluorxylol,pubchem4408 PubChem CID: 96489 IUPAC Name: 1-fluoro-2,3-dimethylbenzene SMILES: CC1=CC=CC(F)=C1C
4-Chloro-2,5-dimethylaniline 98.0+%, TCI America™
CAS: 20782-94-9 Molecular Formula: C8H10ClN Molecular Weight (g/mol): 155.625 MDL Number: MFCD08445705 InChI Key: POEANWWEPFQEEF-UHFFFAOYSA-N Synonym: 4-chloro-2,5-xylidine,4-chloro-2,5-dimethylphenylamine,4-chloro-2,5-dimethyl-phenylamine,acmc-20amm1,4-chloranyl-2,5-dimethyl-aniline,benzenamine,4-chloro-2,5-dimethyl,4-chloro-2,5-dimethyl-anilin PubChem CID: 12338307 IUPAC Name: 4-chloro-2,5-dimethylaniline SMILES: CC1=CC(=C(C=C1Cl)C)N
3,4-Dimethylaniline 99.0+%, TCI America™
CAS: 95-64-7 Molecular Formula: C8H11N Molecular Weight (g/mol): 121.18 MDL Number: MFCD00007810 InChI Key: DOLQYFPDPKPQSS-UHFFFAOYSA-N Synonym: 3,4-xylidine,4-amino-o-xylene,3,4-xylylamine,3,4-dimethylphenylamine,benzenamine, 3,4-dimethyl,3,4-dimethylbenzenamine,3,4-dimethylaminobenzene,1-amino-3,4-dimethylbenzene,4-amino-1,2-dimethylbenzene,aniline, 3,4-dimethyl PubChem CID: 7248 ChEBI: CHEBI:39901 IUPAC Name: 3,4-dimethylaniline SMILES: CC1=CC=C(N)C=C1C
3,3',5,5'-Tetramethylbiphenyl 98.0+%, TCI America™
CAS: 25570-02-9 Molecular Formula: C16H18 Molecular Weight (g/mol): 210.32 MDL Number: MFCD00051910 InChI Key: CMZYGFLOKOQMKF-UHFFFAOYSA-N PubChem CID: 520212 IUPAC Name: 3,3',5,5'-tetramethyl-1,1'-biphenyl SMILES: CC1=CC(=CC(C)=C1)C1=CC(C)=CC(C)=C1
Lidocaine 99.0+%, TCI America™
CAS: 137-58-6 Molecular Formula: C14H22N2O Molecular Weight (g/mol): 234.343 MDL Number: MFCD00026733 InChI Key: NNJVILVZKWQKPM-UHFFFAOYSA-N Synonym: lidocaine,lignocaine,xylocaine,lidoderm,2-diethylamino-n-2,6-dimethylphenyl acetamide,anestacon,esracaine,duncaine,cappicaine,gravocain PubChem CID: 3676 ChEBI: CHEBI:6456 IUPAC Name: 2-(diethylamino)-N-(2,6-dimethylphenyl)acetamide SMILES: CCN(CC)CC(=O)NC1=C(C=CC=C1C)C
2,4-Dimethyldiphenylamine 98.0+%, TCI America™
CAS: 25078-04-0 Molecular Formula: C14H15N Molecular Weight (g/mol): 197.281 InChI Key: BWYYRZBQXLCZJL-UHFFFAOYSA-N Synonym: N-Phenyl-2,4-xylidine, Phenyl(2,4-xylyl)amine PubChem CID: 10559845 IUPAC Name: 2,4-dimethyl-N-phenylaniline SMILES: CC1=CC(=C(C=C1)NC2=CC=CC=C2)C
2,4-Dimethyl-6-nitrophenol 98.0+%, TCI America™
CAS: 14452-34-7 Molecular Formula: C8H9NO3 Molecular Weight (g/mol): 167.16 MDL Number: MFCD00191633 InChI Key: KJRCHILWKQLEBC-UHFFFAOYSA-N Synonym: 6-nitro-2,4-xylenol,phenol, 2,4-dimethyl-6-nitro,acmc-1buww,intermediates-zcf02108,2-nitro-4,6-dimethylphenol,ksc524c1l,phenol,2,4-dimethyl-6-nitro,4,6-dimethyl-2-nitrophenol,2,4-dimethyl-6-nitrophenol 2-nitro-4,6-dimethylphenol PubChem CID: 84450 IUPAC Name: 2,4-dimethyl-6-nitrophenol SMILES: CC1=CC(C)=C(O)C(=C1)[N+]([O-])=O
4-Bromo-m-xylene 97.0+%, TCI America™
CAS: 583-70-0 Molecular Formula: C8H9Br Molecular Weight (g/mol): 185.06 MDL Number: MFCD00000071 InChI Key: YSFLQVNTBBUKEA-UHFFFAOYSA-N Synonym: 4-bromo-m-xylene,2,4-dimethylbromobenzene,benzene, 1-bromo-2,4-dimethyl,4-bromo-1,3-dimethylbenzene,1,3-dimethyl-4-bromobenzene,m-xylene, 4-bromo,1-bromo-2,4-dimethyl-benzene,4-brom-m-xylol,pubchem3762,acmc-1aowv PubChem CID: 68503 IUPAC Name: 1-bromo-2,4-dimethylbenzene SMILES: CC1=CC=C(Br)C(C)=C1
3-Chloro-o-xylene 96.0+%, TCI America™
CAS: 608-23-1 Molecular Formula: C8H9Cl Molecular Weight (g/mol): 140.61 MDL Number: MFCD00060689 InChI Key: NVLHGZIXTRYOKT-UHFFFAOYSA-N Synonym: 3-chloro-o-xylene,2,3-dimethylchlorobenzene,benzene, chlorodimethyl,3-chloro-1,2-dimethylbenzene,3-chloro-ortho-xylene,benzene, 1-chloro-2,3-dimethyl,xylyl chloride,chloro o-xylene,mono-chlorxylol,chloro-ortho-xylene PubChem CID: 32884 IUPAC Name: 1-chloro-2,3-dimethylbenzene SMILES: CC1=C(C(=CC=C1)Cl)C
1,5-Diiodo-2,4-dimethylbenzene 97.0+%, TCI America™
CAS: 4102-50-5 Molecular Formula: C8H8I2 Molecular Weight (g/mol): 357.96 MDL Number: MFCD29089354 InChI Key: ZOOZGIAPEXFLEF-UHFFFAOYSA-N Synonym: 4,6-Diiodo-m-xylene PubChem CID: 12575960 IUPAC Name: 1,5-diiodo-2,4-dimethylbenzene SMILES: CC1=CC(C)=C(I)C=C1I
2-Ethyl-p-xylene 98.0+%, TCI America™
CAS: 1758-88-9 Molecular Formula: C10H14 Molecular Weight (g/mol): 134.222 MDL Number: MFCD00059233 InChI Key: AXIUBBVSOWPLDA-UHFFFAOYSA-N Synonym: 2-ethyl-p-xylene,1,4-dimethyl-2-ethylbenzene,benzene, 2-ethyl-1,4-dimethyl,2,5-dimethylethylbenzene,p-xylene, 2-ethyl,1-ethyl-2,5-dimethylbenzene,1,4-dimethyl-2-ethyl benzene,acmc-1c122,p-xylene, 2-ethyl-8ci PubChem CID: 15653 IUPAC Name: 2-ethyl-1,4-dimethylbenzene SMILES: CCC1=C(C=CC(=C1)C)C