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-Dimethylphenylboronic Acid (contains varying amounts of Anhydride), TCI America™
CAS: 183158-34-1 Molecular Formula: C8H11BO2 Molecular Weight (g/mol): 149.984 MDL Number: MFCD01863524 InChI Key: ZYYANAWVBDFAHY-UHFFFAOYSA-N Synonym: 2,3-dimethylbenzeneboronic acid,2,3-dimethylphenyl boronic acid,o-xylene-3-boronic acid,2,3-dimethylphenyl boranediol,2,3-dimethylbenzeneboronicacid,2,3-dimethylphenylboronicacid,pubchem5037,acmc-1bxk2,amtb394,ksc174k9l PubChem CID: 2773395 IUPAC Name: (2,3-dimethylphenyl)boronic acid SMILES: B(C1=C(C(=CC=C1)C)C)(O)O
2,5-Dimethylnitrobenzene 99.0+%, TCI America™
CAS: 89-58-7 Molecular Formula: C8H9NO2 Molecular Weight (g/mol): 151.17 MDL Number: MFCD00024284 InChI Key: BSFHJMGROOFSRA-UHFFFAOYSA-N Synonym: Nitro-p-xylene PubChem CID: 6974 IUPAC Name: 1,4-dimethyl-2-nitrobenzene SMILES: CC1=CC=C(C)C(=C1)[N+]([O-])=O
2-Iodo-m-xylene 98.0+%, TCI America™
CAS: 608-28-6 Molecular Formula: C8H9I Molecular Weight (g/mol): 232.064 MDL Number: MFCD00019012 InChI Key: QTUGGVBKWIYQSS-UHFFFAOYSA-N Synonym: 2-iodo-m-xylene,2,6-dimethyliodobenzene,m-xylene, 2-iodo,benzene, 2-iodo-1,3-dimethyl,1,3-dimethyl-2-iodobenzene,2-iodo-1,3-dimethyl-benzene,2,6-dimethyl-1-iodobenzene,2-iodo-o-xylene,pubchem3867,acmc-1axwc PubChem CID: 69097 IUPAC Name: 2-iodo-1,3-dimethylbenzene SMILES: CC1=C(C(=CC=C1)C)I
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
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
5-Bromo-m-xylene 98.0+%, TCI America™
CAS: 556-96-7 Molecular Formula: C8H9Br Molecular Weight (g/mol): 185.064 MDL Number: MFCD00000087 InChI Key: LMFRTSBQRLSJHC-UHFFFAOYSA-N Synonym: 5-bromo-m-xylene,3,5-dimethylbromobenzene,benzene, 1-bromo-3,5-dimethyl,m-xylene, 5-bromo,5-bromo-1,3-xylene,5-bromo-1,3-dimethylbenzene,1-bromo-3,5-dimethyl-benzene,5-bromo-meta-xylene,5-bromo-3,5-dimethylbenzene,1-bromo-3,5-dimethyl benzene PubChem CID: 136357 IUPAC Name: 1-bromo-3,5-dimethylbenzene SMILES: CC1=CC(=CC(=C1)Br)C
p-Xylene-2-sulfonyl Chloride 98.0+%, TCI America™
CAS: 19040-62-1 Molecular Formula: C8H9ClO2S Molecular Weight (g/mol): 204.668 MDL Number: MFCD00024875 InChI Key: FZVZUIBYLZZOEW-UHFFFAOYSA-N Synonym: p-xylene-2-sulfonyl chloride,benzenesulfonyl chloride, 2,5-dimethyl,2,5-dimethylbenzene-1-sulfonyl chloride,2,5-dimethylphenylsulfonyl chloride,2,5-dimethyl-benzenesulfonyl chloride,benzenesulfonylchloride, 2,5-dimethyl,2,5-dimethylphenyl chlorosulfone,acmc-209etq,xylenesulfonylchloride,ksc178m0f PubChem CID: 87910 IUPAC Name: 2,5-dimethylbenzenesulfonyl chloride SMILES: CC1=CC(=C(C=C1)C)S(=O)(=O)Cl
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
6-Nitro-2,3-xylidine 98.0+%, TCI America™
CAS: 59146-96-2 Molecular Formula: C8H10N2O2 Molecular Weight (g/mol): 166.18 MDL Number: MFCD00010148 InChI Key: YEFYPFWBLCARLC-UHFFFAOYSA-N PubChem CID: 597166 IUPAC Name: 2,3-dimethyl-6-nitroaniline SMILES: CC1=C(C(=C(C=C1)[N+](=O)[O-])N)C
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
2,5-Dichloro-p-xylene 97.0+%, TCI America™
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-Dimethylaniline Hydrochloride 98.0+%, TCI America™
CAS: 21436-98-6 Molecular Formula: C8H12ClN Molecular Weight (g/mol): 157.641 MDL Number: MFCD00060213 InChI Key: QNWMFJDRMZWZNN-UHFFFAOYSA-N Synonym: 2,6-Xylidine Hydrochloride PubChem CID: 88899 IUPAC Name: 2,6-dimethylaniline;hydrochloride SMILES: CC1=C(C(=CC=C1)C)N.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
p-Xylene 99.0+%, TCI America™
CAS: 106-42-3 Molecular Formula: C8H10 Molecular Weight (g/mol): 106.17 MDL Number: MFCD00008556 InChI Key: URLKBWYHVLBVBO-UHFFFAOYSA-N Synonym: p-xylene,para-xylene,1,4-dimethylbenzene,p-methyltoluene,p-dimethylbenzene,p-xylol,benzene, 1,4-dimethyl,4-xylene,chromar,4-methyltoluene PubChem CID: 7809 ChEBI: CHEBI:27417 IUPAC Name: 1,4-xylene SMILES: CC1=CC=C(C)C=C1
Dexmedetomidine Hydrochloride 98.0+%, TCI America™
CAS: 145108-58-3 Molecular Formula: C13H17ClN2 Molecular Weight (g/mol): 236.743 MDL Number: MFCD12912677 InChI Key: VPNGEIHDPSLNMU-MERQFXBCSA-N Synonym: dexmedetomidine hydrochloride,dexmedetomidine hcl,precedex,4-s-alpha,2,3-trimethylbenzyl imidazole monohydrochloride,unii-1018wh7f9i,dexmedetomidine hcl precedex,s-5-1-2,3-dimethylphenyl ethyl-1h-imidazole hydrochloride,dexdor,4-1s-1-2,3-dimethylphenyl ethyl-1h-imidazole hydrochloride PubChem CID: 6918081 ChEBI: CHEBI:31472 IUPAC Name: 5-[(1S)-1-(2,3-dimethylphenyl)ethyl]-1H-imidazole;hydrochloride SMILES: CC1=C(C(=CC=C1)C(C)C2=CN=CN2)C.Cl