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-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
2,3,5,6-Tetrafluoro-p-xylene 98.0+%, TCI America™
CAS: 703-87-7 Molecular Formula: C8H6F4 Molecular Weight (g/mol): 178.13 MDL Number: MFCD00012231 InChI Key: IWKPBYPUIPVYNZ-UHFFFAOYSA-N Synonym: 2,3,5,6-Tetrafluoro-1,4-dimethylbenzene PubChem CID: 136549 IUPAC Name: 1,2,4,5-tetrafluoro-3,6-dimethylbenzene SMILES: CC1=C(C(=C(C(=C1F)F)C)F)F
4-Ethyl-m-xylene 95.0+%, TCI America™
CAS: 874-41-9 Molecular Formula: C10H14 Molecular Weight (g/mol): 134.222 MDL Number: MFCD00039905 InChI Key: MEMBJMDZWKVOTB-UHFFFAOYSA-N Synonym: 4-ethyl-m-xylene,1,3-dimethyl-4-ethylbenzene,benzene, 1-ethyl-2,4-dimethyl,m-xylene, 4-ethyl,1,3-dimethyl-4-ethyl benzene,benzene,1-ethyl-2,4-dimethyl,4-ethyl-1,3-xylene,acmc-1blmc,2,4-dimethylethylbenzene,2,4-dimethyl-1-ethylbenzene PubChem CID: 13403 IUPAC Name: 1-ethyl-2,4-dimethylbenzene SMILES: CCC1=C(C=C(C=C1)C)C
2-Bromo-4,6-dimethylaniline 97.0+%, TCI America™
CAS: 41825-73-4 Molecular Formula: C8H10BrN Molecular Weight (g/mol): 200.08 MDL Number: MFCD00047826 InChI Key: YOSJCQJJIHEUKA-UHFFFAOYSA-N Synonym: 2-bromo-4,6-dimethyl-aniline,6-bromo-2,4-xylidine,benzenamine, 2-bromo-4,6-dimethyl,2-bromo-4,6-dimethylphenylamine,4-amino-5-bromo-m-xylene,2-bromo-4,6-dimethylbenzenamine,2-bromo-4,6-dimethyl-phenylamine,2-amino-3,5-dimethyl-1-bromobenzene,pubchem3761 PubChem CID: 170579 IUPAC Name: 2-bromo-4,6-dimethylaniline SMILES: CC1=CC(C)=C(N)C(Br)=C1
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
1,5-Dibromo-2,4-dimethylbenzene 97.0+%, TCI America™
CAS: 615-87-2 Molecular Formula: C8H8Br2 Molecular Weight (g/mol): 263.96 MDL Number: MFCD00154984 InChI Key: SOYPUUFPUFRXRI-UHFFFAOYSA-N Synonym: 4,6-Dibromo-m-xylene PubChem CID: 621990 IUPAC Name: 1,5-dibromo-2,4-dimethylbenzene SMILES: CC1=CC(C)=C(Br)C=C1Br
2,4-Dimethylaniline Hydrochloride 98.0+%, TCI America™
CAS: 21436-96-4 Molecular Formula: C8H12ClN Molecular Weight (g/mol): 157.641 MDL Number: MFCD00060209 InChI Key: HFXISSJBRAPVLG-UHFFFAOYSA-N Synonym: m-Xylidine Hydrochloride PubChem CID: 88898 IUPAC Name: 2,4-dimethylaniline;hydrochloride SMILES: CC1=CC(=C(C=C1)N)C.Cl
2,6-Dimethylanisole 98.0+%, TCI America™
CAS: 1004-66-6 Molecular Formula: C9H12O Molecular Weight (g/mol): 136.19 MDL Number: MFCD00008380 InChI Key: GFNZJAUVJCGWLW-UHFFFAOYSA-N Synonym: 2,6-dimethylanisole,2-methoxy-m-xylene,benzene, 2-methoxy-1,3-dimethyl,1,3-dimethyl-2-methoxybenzene,pubchem4115,2,6-dimethyl anisole,acmc-1buuc,ksc493q8r,2,6-dimethylphenyl methyl ether PubChem CID: 66088 IUPAC Name: 2-methoxy-1,3-dimethylbenzene SMILES: COC1=C(C)C=CC=C1C
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
4-Ethyl-o-xylene 99.0+%, TCI America™
CAS: 934-80-5 Molecular Formula: C10H14 Molecular Weight (g/mol): 134.222 MDL Number: MFCD00059234 InChI Key: SBUYFICWQNHBCM-UHFFFAOYSA-N Synonym: 4-ethyl-o-xylene,1,2-dimethyl-4-ethylbenzene,2-methyl-p-ethyltoluene,3,4-dimethylethylbenzene,o-xylene, 4-ethyl,benzene, 4-ethyl-1,2-dimethyl,acmc-209rm3,1-ethyl-3,4-dimethylbenzene,3,4-dimethyl-1-ethylbenzene,1,2-dimethyl-4-ethyl benzene PubChem CID: 13629 IUPAC Name: 4-ethyl-1,2-dimethylbenzene SMILES: CCC1=CC(=C(C=C1)C)C
3,5-Dimethylbenzoyl Chloride 97.0+%, TCI America™
CAS: 6613-44-1 Molecular Formula: C9H9ClO Molecular Weight (g/mol): 168.62 MDL Number: MFCD02313742 InChI Key: ZJIOBDJEKDUUCI-UHFFFAOYSA-N Synonym: 3,5-dimethyl benzoyl chloride,benzoyl chloride, 3,5-dimethyl,3,5-dimethylbenzoylchloride,m-xylene-5-carbonyl chloride,pubchem15465,acmc-1b8cp,5-chloroformyl-m-xylene,3,5 dimethylbenzoyl chloride,3.5-dimethylbenzoyl chloride,5-chlorocarbonyl-m-xylene PubChem CID: 81088 IUPAC Name: 3,5-dimethylbenzoyl chloride SMILES: CC1=CC(=CC(=C1)C(=O)Cl)C
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
4-Bromo-m-xylene 75.0+%, 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-Ethyl-o-xylene 99.0+%, TCI America™
CAS: 933-98-2 Molecular Formula: C10H14 Molecular Weight (g/mol): 134.222 MDL Number: MFCD00059232 InChI Key: QUBBAXISAHIDNM-UHFFFAOYSA-N Synonym: 3-ethyl-o-xylene,1,2-dimethyl-3-ethylbenzene,ethylxylene,benzene, 1-ethyl-2,3-dimethyl,benzene, ethyldimethyl,o-xylene, 3-ethyl,ethyldimethylbenzene,acmc-209rli,2,3-dimethylethylbenzene,3-ethyl-1,2-dimethylbenzene PubChem CID: 13621 IUPAC Name: 1-ethyl-2,3-dimethylbenzene SMILES: CCC1=CC=CC(=C1C)C