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.
2,4-Dimethylphenol, 99%
CAS: 105-67-9 Molecular Formula: C8H10O Molecular Weight (g/mol): 122.17 MDL Number: MFCD00002233 InChI Key: KUFFULVDNCHOFZ-UHFFFAOYSA-N Synonym: 2,4-xylenol,phenol, 2,4-dimethyl,gallex,4,6-dimethylphenol,1-hydroxy-2,4-dimethylbenzene,4-hydroxy-1,3-dimethylbenzene,rcra waste number u101,2,4-dimethyl phenol,caswell no. 907a,lysol brand disinfectant PubChem CID: 7771 ChEBI: CHEBI:34241 IUPAC Name: 2,4-dimethylphenol SMILES: CC1=CC(=C(C=C1)O)C
2,5-Dichloro-p-xylene, 98%
CAS: 1124-05-6 Molecular Formula: C8H8Cl2 Molecular Weight (g/mol): 175.052 MDL Number: MFCD00000610 InChI Key: UTGSRNVBAFCOEU-UHFFFAOYSA-N Synonym: 2,5-dichloro-p-xylene,2,5-dichloro-1,4-dimethylbenzene,benzene, 1,4-dichloro-2,5-dimethyl,p-xylene, 2,5-dichloro,unii-7p8m86zob2,2,5-dichloro-para-xylene,p-xylene,5-dichloro,p-xylene,2,5-dichloro,acmc-2099eq,dsstox_cid_24780 PubChem CID: 70755 IUPAC Name: 1,4-dichloro-2,5-dimethylbenzene SMILES: CC1=CC(=C(C=C1Cl)C)Cl
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
2,4-Dimethylphenyl isocyanate, 98+%
CAS: 51163-29-2 Molecular Formula: C9H9NO Molecular Weight (g/mol): 147.177 MDL Number: MFCD00013853 InChI Key: QUOBVYPFBJUOAJ-UHFFFAOYSA-N Synonym: 2,4-dimethylphenyl isocyanate,2,4-dimethylphenylisocyanate,benzene, 1-isocyanato-2,4-dimethyl,2,4-dimethylbenzenisocyanate,acmc-20aoc8,1-isocyanato-2,4-dimethyl-benzene PubChem CID: 5207585 IUPAC Name: 1-isocyanato-2,4-dimethylbenzene SMILES: CC1=CC(=C(C=C1)N=C=O)C
3,5-Dimethylphenyl isothiocyanate, 99%
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
o-Xylene, Spectrophotometric Grade, 96% min
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
2,5-Dimethyl-4-(4-morpholinylmethyl)phenol hydrochloride hydrate, 99%, Thermo Scientific™
CAS: 33625-43-3 Molecular Formula: C13H20ClNO2 Molecular Weight (g/mol): 257.76 MDL Number: MFCD00012796 InChI Key: RLGUYDSHQWRANT-UHFFFAOYSA-N Synonym: 2,5-dimethyl-4-morpholinomethyl phenol hydrochloride,phenol, 2,5-dimethyl-4-4-morpholinylmethyl-, hydrochloride,phenol, 2,5-dimethyl-4-4-morpholinylmethyl-, hydrochloride 1:1,2,5-dimethyl-4-morpholin-4-ylmethyl phenol hydrochloride,2,5-dimethyl-4-morpholin-4-ylmethyl phenol, chloride,4-morpholinomethyl-2,5-xylenol hydrochloride,acmc-20aoah,2,5-dimethyl-4-morpholinomethyl phenolhydrochloride,2,5-dimethyl-4-4-morpholinylmethyl phenol hydrochloride hydrate PubChem CID: 118512 IUPAC Name: 2,5-dimethyl-4-(morpholin-4-ylmethyl)phenol;hydrochloride SMILES: Cl.CC1=CC(CN2CCOCC2)=C(C)C=C1O