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, 99%
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
2,6-Dimethylphenyl isocyanate, 98%
CAS: 28556-81-2 Molecular Formula: C9H9NO Molecular Weight (g/mol): 147.18 MDL Number: MFCD00002012 InChI Key: YQLRKXVEALTVCZ-UHFFFAOYSA-N Synonym: 2,6-dimethylphenyl isocyanate,benzene, 2-isocyanato-1,3-dimethyl,2,6-dimethylphenylisocyanate,2,6-xylyl isocyanate,unii-2ql5mu0e0c,2ql5mu0e0c,isocyanic acid 2,6-dimethylphenyl ester,2,6-dimethylbenzenisocyanate,2,6-dimethyl phenyl isocyanate,2-isocyanato-1,3-dimethyl-benzene PubChem CID: 98787 IUPAC Name: 2-isocyanato-1,3-dimethylbenzene SMILES: CC1=CC=CC(C)=C1N=C=O
Xylenes, mixed, 97+%
CAS: 1330-20-7 Molecular Formula: C8H10 MDL Number: MFCD00077264 Synonym: Dimethylbenzenes + ethylbenzene
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
2,6-Dimethylbenzoic acid, 98+%
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
3,4-Dimethylanisole, 99%
CAS: 4685-47-6 Molecular Formula: C9H12O Molecular Weight (g/mol): 136.194 MDL Number: MFCD00008396 InChI Key: LVUBSVWMOWKPDJ-UHFFFAOYSA-N Synonym: 3,4-dimethylanisole,4-methoxy-1,2-dimethyl-benzene,4-methoxy-o-xylene,benzene, 4-methoxy-1,2-dimethyl,3,4-dimethyl anisole,1,2-dimethyl-4-methoxybenzene,3,4-dimethylphenyl methyl ether,acmc-20anel,pubchem5361 PubChem CID: 78411 IUPAC Name: 4-methoxy-1,2-dimethylbenzene SMILES: CC1=C(C=C(C=C1)OC)C
m-Xylene, 99%
CAS: 108-38-3 Molecular Formula: C8H10 Molecular Weight (g/mol): 106.17 MDL Number: MFCD00008536 InChI Key: IVSZLXZYQVIEFR-UHFFFAOYSA-N Synonym: m-xylene,1,3-dimethylbenzene,m-xylol,m-dimethylbenzene,meta-xylene,m-methyltoluene,3-xylene,benzene, 1,3-dimethyl,1,3-dimethylbenzol,santosol 150 PubChem CID: 7929 ChEBI: CHEBI:28488 IUPAC Name: 1,3-xylene SMILES: CC1=CC(C)=CC=C1
3,4-Dimethylbenzoic acid, 98%
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
4-Iodo-o-xylene, 98+%
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
2,5-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
4-Bromo-o-xylene, 97%
CAS: 583-71-1 Molecular Formula: C8H9Br Molecular Weight (g/mol): 185.064 MDL Number: MFCD00000086 InChI Key: QOGHRLGTXVMRLM-UHFFFAOYSA-N Synonym: 4-bromo-o-xylene,3,4-dimethylbromobenzene,1-bromo-3,4-dimethylbenzene,benzene, 4-bromo-1,2-dimethyl,3,4-xylyl bromide,4-bromo-1,2-xylene,4-bromo-1,2-dimethyl-benzene,3,4-dimethylphenyl bromide,4-bromo-ortho-xylene,o-xylene, 4-bromo PubChem CID: 68504 IUPAC Name: 4-bromo-1,2-dimethylbenzene SMILES: CC1=C(C=C(C=C1)Br)C
3,4-Dimethylbenzamide, 98%
CAS: 5580-33-6 Molecular Formula: C9H11NO Molecular Weight (g/mol): 149.193 MDL Number: MFCD00052960 InChI Key: INGCXEIJXKQPJH-UHFFFAOYSA-N PubChem CID: 21755 IUPAC Name: 3,4-dimethylbenzamide SMILES: CC1=C(C=C(C=C1)C(=O)N)C
2,4-Dimethyl-6-nitrophenol, 98%
CAS: 14452-34-7 Molecular Formula: C8H9NO3 Molecular Weight (g/mol): 167.16 MDL Number: MFCD00191633 InChI Key: KJRCHILWKQLEBC-UHFFFAOYSA-N PubChem CID: 84450 IUPAC Name: 2,4-dimethyl-6-nitrophenol SMILES: CC1=CC(C)=C(O)C(=C1)[N+]([O-])=O
2-Fluoro-m-xylene, 98%
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
1-(2,4-Dimethylphenyl)ethanol, 95%
CAS: 5379-19-1 Molecular Formula: C10H14O Molecular Weight (g/mol): 150.221 MDL Number: MFCD00060890 InChI Key: DNHQUGRUHBFDFT-UHFFFAOYSA-N Synonym: 1-2,4-dimethylphenyl ethanol,1-2,4-dimethylphenyl ethan-1-ol,1-2,4-dimethylbenzene-1-ethanol PubChem CID: 21475 IUPAC Name: 1-(2,4-dimethylphenyl)ethanol SMILES: CC1=CC(=C(C=C1)C(C)O)C