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.
2,3,5,6-Tetrabromo-p-xylene 98.0+%, TCI America™
CAS: 23488-38-2 Molecular Formula: C8H6Br4 Molecular Weight (g/mol): 421.752 MDL Number: MFCD00010353 InChI Key: RXKOKVQKECXYOT-UHFFFAOYSA-N Synonym: 1,2,4,5-Tetrabromo-3,6-dimethylbenzene PubChem CID: 31952 IUPAC Name: 1,2,4,5-tetrabromo-3,6-dimethylbenzene SMILES: CC1=C(C(=C(C(=C1Br)Br)C)Br)Br
5-Bromo-2-fluoro-m-xylene 97.0+%, TCI America™
CAS: 99725-44-7 Molecular Formula: C8H8BrF Molecular Weight (g/mol): 203.054 MDL Number: MFCD01320701 InChI Key: ZXPHUVHMBKRRJF-UHFFFAOYSA-N Synonym: 5-bromo-2-fluoro-m-xylene,5-bromo-2-fluoro-3-xylene,4-bromo-2,6-dimethylfluorobenzene,1-bromo-4-fluoro-3,5-dimethylbenzene,5-bromo-2-fluoro-1,3-xylene,benzene, 5-bromo-2-fluoro-1,3-dimethyl,3,5-dimethyl-4-fluorobromobenzene,5-bromo-2-fluoro-1,3-dimethyl-benzene,ksc486i9j PubChem CID: 2736298 IUPAC Name: 5-bromo-2-fluoro-1,3-dimethylbenzene SMILES: CC1=CC(=CC(=C1F)C)Br
N-tert-Butyl-3,5-dimethylaniline 98.0+%, TCI America™
CAS: 110993-40-3 Molecular Formula: C12H19N Molecular Weight (g/mol): 177.291 InChI Key: HMWHVIXDKZHDEO-UHFFFAOYSA-N Synonym: n-tert-butyl-3,5-dimethylaniline,n-tert-butyl-3,5-xylidine,3,5-dimethyl-n-tert-butylaniline,n-1,1-dimethylethyl-3,5-dimethyl benzenamine,benzenamine,n-1,1-dimethylethyl-3,5-dimethyl PubChem CID: 5242234 IUPAC Name: N-tert-butyl-3,5-dimethylaniline SMILES: CC1=CC(=CC(=C1)NC(C)(C)C)C
4-Bromo-2,6-dimethylaniline 98.0+%, TCI America™
CAS: 24596-19-8 Molecular Formula: C8H10BrN Molecular Weight (g/mol): 200.08 MDL Number: MFCD00007826 InChI Key: QGLAYJCJLHNIGJ-UHFFFAOYSA-N Synonym: 4-bromo-2,6-xylidine,benzenamine, 4-bromo-2,6-dimethyl,4-bromo-2,6-dimethyl-phenylamine,2-amino-5-bromo-m-xylene,2,6-dimethyl-4-bromoaniline,4-bromo-2,6-dimethylbenzenamine,4-bromo-2,6-dimethylphenylamine,4-bromo-2,6-dimethyl-aniline,4-bromo-2,6-dimethylaniline,4-bromo-2,6-dimethyl-benzenamine PubChem CID: 90549 IUPAC Name: 4-bromo-2,6-dimethylaniline SMILES: CC1=CC(Br)=CC(C)=C1N
2-Amino-3,5-dimethylbenzenesulfonic Acid 97.0+%, TCI America™
CAS: 88-22-2 Molecular Formula: C8H11NO3S Molecular Weight (g/mol): 201.24 MDL Number: MFCD00035770 InChI Key: CFCXQQUQLZIZPI-UHFFFAOYSA-N Synonym: m-Xylidine-6-sulfonic Acid, 2,4-Dimethylaniline-6-sulfonic Acid PubChem CID: 66608 IUPAC Name: 2-amino-3,5-dimethylbenzenesulfonic acid SMILES: CC1=CC(=C(C(=C1)S(=O)(=O)O)N)C
Amitraz 97.0+%, TCI America™
CAS: 33089-61-1 Molecular Formula: C19H23N3 Molecular Weight (g/mol): 293.414 MDL Number: MFCD00069396 InChI Key: QXAITBQSYVNQDR-UHFFFAOYSA-N Synonym: amitraz,mitac,taktic,triazid,azaform,mitaban,acarac,baam,azadieno,ectodex PubChem CID: 36324 ChEBI: CHEBI:2665 IUPAC Name: N'-(2,4-dimethylphenyl)-N-[(2,4-dimethylphenyl)iminomethyl]-N-methylmethanimidamide SMILES: CC1=CC(=C(C=C1)N=CN(C)C=NC2=C(C=C(C=C2)C)C)C
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
5-Iodo-m-xylene 98.0+%, TCI America™
CAS: 22445-41-6 Molecular Formula: C8H9I Molecular Weight (g/mol): 232.06 MDL Number: MFCD00060659 InChI Key: ZLMKEENUYIUKKC-UHFFFAOYSA-N Synonym: 5-iodo-m-xylene,1,3-dimethyl-5-iodobenzene,benzene, 1-iodo-3,5-dimethyl,3,5-dimethyliodobenzene,pubchem3872,acmc-1ccdf,3,5-dimethyl-1-iodobenzene,ksc422q9l,1-iodo-3,5-dimethylbenzene,# PubChem CID: 140924 IUPAC Name: 1-iodo-3,5-dimethylbenzene SMILES: CC1=CC(I)=CC(C)=C1
1,2-Bis(3,4-dimethylphenyl)ethane 95.0+%, TCI America™
CAS: 34101-86-5 Molecular Formula: C18H22 Molecular Weight (g/mol): 238.37 MDL Number: MFCD00037055 InChI Key: MOPBWASVAUDDTC-UHFFFAOYSA-N Synonym: 1,2-Di(3,4-xylyl)ethane PubChem CID: 36676 IUPAC Name: 4-[2-(3,4-dimethylphenyl)ethyl]-1,2-dimethylbenzene SMILES: CC1=CC=C(CCC2=CC=C(C)C(C)=C2)C=C1C
4-Iodo-o-xylene 98.0+%, TCI America™
CAS: 31599-61-8 Molecular Formula: C8H9I Molecular Weight (g/mol): 232.064 MDL Number: MFCD00040989 InChI Key: CSFRCLYFVINMBZ-UHFFFAOYSA-N Synonym: 4-iodo-o-xylene,1,2-dimethyl-4-iodobenzene,benzene, 4-iodo-1,2-dimethyl,3,4-dimethyliodobenzene,1-iodo-3,4-dimethylbenzene,4-iodo-ortho-xylene,3,4-dimethyl-1-iodobenzene,4-iodo-orthoxylene,4-iodo-0-xylene,pubchem3105 PubChem CID: 141646 IUPAC Name: 4-iodo-1,2-dimethylbenzene SMILES: CC1=C(C=C(C=C1)I)C
2,6-Dimethylbenzoic Acid 98.0+%, TCI America™
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
1-(3,4-Dimethylphenyl)-3-methyl-5-pyrazolone 97.0+%, TCI America™
CAS: 277299-70-4 Molecular Formula: C12H14N2O Molecular Weight (g/mol): 202.257 MDL Number: MFCD09795980 InChI Key: HBWBJCSXUJIDGN-UHFFFAOYSA-N PubChem CID: 11735829 IUPAC Name: 2-(3,4-dimethylphenyl)-5-methyl-1H-pyrazol-3-one SMILES: CC1=C(C=C(C=C1)N2C(=O)C=C(N2)C)C
2,5-Dimethylaniline 97.0+%, TCI America™
CAS: 95-78-3 Molecular Formula: C8H11N Molecular Weight (g/mol): 121.18 MDL Number: MFCD00007743 InChI Key: VOWZNBNDMFLQGM-UHFFFAOYSA-N Synonym: 2,5-xylidine,p-xylidine,2,5-dimethylphenylamine,2-amino-1,4-xylene,2,5-dimethylbenzenamine,benzenamine, 2,5-dimethyl,5-methyl-o-toluidine,6-methyl-m-toluidine,1-amino-2,5-dimethylbenzene,p-dimethylaniline PubChem CID: 7259 ChEBI: CHEBI:518305 IUPAC Name: 2,5-dimethylaniline SMILES: CC1=CC=C(C)C(N)=C1
3,5-Dimethylaniline 98.0+%, TCI America™
CAS: 108-69-0 Molecular Formula: C8H11N Molecular Weight (g/mol): 121.183 MDL Number: MFCD00007813 InChI Key: MKARNSWMMBGSHX-UHFFFAOYSA-N Synonym: 3,5-xylidine,benzenamine, 3,5-dimethyl,3,5-xylylamine,3,5-dimethylphenylamine,3,5-xylidene,5-amino-1,3-xylene,1-amino-3,5-dimethylbenzene,3,5-dimethylbenzenamine,3,5-dimethylbenzeneamine,5-amino-1,3-dimethylbenzene PubChem CID: 7949 IUPAC Name: 3,5-dimethylaniline SMILES: CC1=CC(=CC(=C1)N)C