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.
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
Bis(2,4-dimethylphenyl)amine 98.0+%, TCI America™
CAS: 19616-28-5 Molecular Formula: C16H19N Molecular Weight (g/mol): 225.34 MDL Number: MFCD16619146 InChI Key: MAINCNYZMOMWRA-UHFFFAOYSA-N Synonym: Di-2,4-xylylamine PubChem CID: 21989085 IUPAC Name: N-(2,4-dimethylphenyl)-2,4-dimethylaniline SMILES: CC1=CC(C)=C(NC2=C(C)C=C(C)C=C2)C=C1
N,N-Diethyl-2,3-dimethylbenzamide 98.0+%, TCI America™
CAS: 57806-76-5 Molecular Formula: C13H19NO Molecular Weight (g/mol): 205.301 MDL Number: MFCD06797096 InChI Key: SMVYLWURFNYXTP-UHFFFAOYSA-N Synonym: N,N-Diethyl-o-xylene-3-carboxamide PubChem CID: 15621069 IUPAC Name: N,N-diethyl-2,3-dimethylbenzamide SMILES: CCN(CC)C(=O)C1=C(C(=CC=C1)C)C
2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 98.0+%, TCI America™
CAS: 401797-00-0 Molecular Formula: C14H21BO2 Molecular Weight (g/mol): 232.13 MDL Number: MFCD12405519 InChI Key: HWIMTTLCFONAAB-UHFFFAOYSA-N Synonym: 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-o-xylene, 3,4-Dimethylphenylboronic Acid Pinacol Ester PubChem CID: 15906194 IUPAC Name: 2-(3,4-dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane SMILES: B1(OC(C(O1)(C)C)(C)C)C2=CC(=C(C=C2)C)C
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
2,3-Dimethylbenzoic Acid 98.0+%, TCI America™
CAS: 603-79-2 Molecular Formula: C9H10O2 Molecular Weight (g/mol): 150.177 MDL Number: MFCD00002479 InChI Key: RIZUCYSQUWMQLX-UHFFFAOYSA-N Synonym: hemellitic acid,benzoic acid, 2,3-dimethyl,2,3-dimethylbenzoicacid,2,3-dimethyl benzoic acid,2,3-dimethyl-benzoic acid,unii-7irp8ca267,2,3-dimethylbenzenecarboxylic acid,vic-o-xylylic acid,methyl m-toluic acid,pubchem2549 PubChem CID: 11782 ChEBI: CHEBI:64823 IUPAC Name: 2,3-dimethylbenzoic acid SMILES: CC1=CC=CC(=C1C)C(=O)O
3,5-Dimethylphenyl Isothiocyanate 97.0+%, TCI America™
CAS: 40046-30-8 Molecular Formula: C9H9NS Molecular Weight (g/mol): 163.238 MDL Number: MFCD00041082 InChI Key: DSMXCADWIFIJEX-UHFFFAOYSA-N Synonym: 3,5-dimethylphenyl isothiocyanate,3,5-dimethylphenylisothiocyanate,3,5-dimethylbenzenisothiocyanate,acmc-20anca,3,5-xylyl isothiocyanate,1-isothiocyanato-3,5-dimethyl-benzene,#,isothiocyanic acid 3,5-dimethylphenyl ester PubChem CID: 142406 IUPAC Name: 1-isothiocyanato-3,5-dimethylbenzene SMILES: CC1=CC(=CC(=C1)N=C=S)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
2,4-Dimethylbenzoic Acid 99.0+%, TCI America™
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
Detomidine Hydrochloride 98.0+%, TCI America™
CAS: 90038-01-0 Molecular Formula: C12H15ClN2 Molecular Weight (g/mol): 222.716 MDL Number: MFCD17292784 InChI Key: OIWRDXKNDCJZSM-UHFFFAOYSA-N Synonym: 5-(2,3-Dimethylbenzyl)-1H-imidazole Hydrochloride PubChem CID: 56031 IUPAC Name: 5-[(2,3-dimethylphenyl)methyl]-1H-imidazole;hydrochloride SMILES: CC1=C(C(=CC=C1)CC2=CN=CN2)C.Cl
4-Iodo-m-xylene 98.0+%, TCI America™
CAS: 4214-28-2 Molecular Formula: C8H9I Molecular Weight (g/mol): 232.06 MDL Number: MFCD00013706 InChI Key: BUNKQJAMHYKQIM-UHFFFAOYSA-N Synonym: 4-iodo-m-xylene,2,4-dimethyliodobenzene,1,3-dimethyl-4-iodobenzene,m-xylene, 4-iodo,benzene, 1-iodo-2,4-dimethyl,2,4-dimethyl-1-iodobenzene,2-iodo-1,5-dimethylbenzene,4-jod-m-xylol,pubchem3869,acmc-209jnr PubChem CID: 77885 IUPAC Name: 1-iodo-2,4-dimethylbenzene SMILES: CC1=CC=C(I)C(C)=C1
2-Fluoro-m-xylene 98.0+%, TCI America™
CAS: 443-88-9 Molecular Formula: C8H9F Molecular Weight (g/mol): 124.158 MDL Number: MFCD00039215 InChI Key: JTAUTNBVFDTYTI-UHFFFAOYSA-N Synonym: 2,6-dimethylfluorobenzene,2-fluoro-m-xylene,1-fluoro-2,6-dimethylbenzene,1,3-dimethyl-2-fluorobenzene,benzene, 2-fluoro-1,3-dimethyl,2,6-dimethyl fluorobenzene,2-fluoro-1,3-dimethyl-benzene,fr b1 f1,pubchem4407,2-fluoro-3-methyltoluene PubChem CID: 123065 IUPAC Name: 2-fluoro-1,3-dimethylbenzene SMILES: CC1=C(C(=CC=C1)C)F
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
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
2,5-Dimethylanisole 98.0+%, TCI America™
CAS: 1706-11-2 Molecular Formula: C9H12O Molecular Weight (g/mol): 136.194 MDL Number: MFCD00008378 InChI Key: SJZAUIVYZWPNAS-UHFFFAOYSA-N Synonym: 2,5-dimethylanisole,benzene, 2-methoxy-1,4-dimethyl,unii-rh47bom48g,2-methoxy-p-xylene,rh47bom48g,1,4-dimethyl-2-methyoxybenzene,benzene, 1-methoxy-2,5-dimethyl,1,4-dimethyl-2-methoxybenzene,2,5-dimethylanisol,pubchem5360 PubChem CID: 74350 IUPAC Name: 2-methoxy-1,4-dimethylbenzene SMILES: CC1=CC(=C(C=C1)C)OC