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.
2,6-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
3-Fluoro-o-xylene 98.0+%, TCI America™
CAS: 443-82-3 Molecular Formula: C8H9F Molecular Weight (g/mol): 124.16 MDL Number: MFCD00000323 InChI Key: AWLDSXJCQWTJPC-UHFFFAOYSA-N Synonym: 3-fluoro-o-xylene,2,3-dimethylfluorobenzene,3-fluoro-1,2-xylene,o-xylene, 3-fluoro,3-fluoro-1,2-dimethylbenzene,benzene, 1-fluoro-2,3-dimethyl,1,2-dimethyl-3-fluorobenzene,1-fluoro-2,3-dimethyl-benzene,fluorxylol,pubchem4408 PubChem CID: 96489 IUPAC Name: 1-fluoro-2,3-dimethylbenzene SMILES: CC1=CC=CC(F)=C1C
Lidocaine 99.0+%, TCI America™
CAS: 137-58-6 Molecular Formula: C14H22N2O Molecular Weight (g/mol): 234.343 MDL Number: MFCD00026733 InChI Key: NNJVILVZKWQKPM-UHFFFAOYSA-N Synonym: lidocaine,lignocaine,xylocaine,lidoderm,2-diethylamino-n-2,6-dimethylphenyl acetamide,anestacon,esracaine,duncaine,cappicaine,gravocain PubChem CID: 3676 ChEBI: CHEBI:6456 IUPAC Name: 2-(diethylamino)-N-(2,6-dimethylphenyl)acetamide SMILES: CCN(CC)CC(=O)NC1=C(C=CC=C1C)C
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
6-tert-Butyl-2,4-xylenol 97.0+%, TCI America™
CAS: 1879-09-0 Molecular Formula: C12H18O Molecular Weight (g/mol): 178.28 MDL Number: MFCD00002234 InChI Key: OPLCSTZDXXUYDU-UHFFFAOYSA-N Synonym: 2,4-dimethyl-6-tert-butylphenol,2-tert-butyl-4,6-dimethylphenol,6-tert-butyl-2,4-dimethylphenol,topanol a,6-tert-butyl-2,4-xylenol,6-t-butyl-2,4-xylenol,prodox 340,phenol, 2-1,1-dimethylethyl-4,6-dimethyl,6-t-butyl-2,4-dimethylphenol,2,4-xylenol, 6-tert-butyl PubChem CID: 15884 IUPAC Name: 2-tert-butyl-4,6-dimethylphenol SMILES: CC1=CC(C)=C(O)C(=C1)C(C)(C)C
2-Bromo-m-xylene 98.0+%, TCI America™
CAS: 576-22-7 Molecular Formula: C8H9Br Molecular Weight (g/mol): 185.064 MDL Number: MFCD00000075 InChI Key: MYMYVYZLMUEVED-UHFFFAOYSA-N Synonym: 2,6-dimethylbromobenzene,2-bromo-m-xylene,1-bromo-2,6-dimethylbenzene,benzene, 2-bromo-1,3-dimethyl,2,6-dimethyl bromobenzene,m-xylene, 2-bromo,2,6-dimethylphenyl bromide,2-bromo-meta-xylene,2-bromo-1,3-dimethyl-benzene,pubchem3206 PubChem CID: 68471 IUPAC Name: 2-bromo-1,3-dimethylbenzene SMILES: CC1=C(C(=CC=C1)C)Br
4-Bromo-2,6-dimethylaniline 98.0+%, TCI America™
CAS: 24596-19-8 Molecular Formula: C8H10BrN Molecular Weight (g/mol): 200.08 MDL Number: MFCD00007826 InChI Key: QGLAYJCJLHNIGJ-UHFFFAOYSA-N Synonym: 4-bromo-2,6-xylidine,benzenamine, 4-bromo-2,6-dimethyl,4-bromo-2,6-dimethyl-phenylamine,2-amino-5-bromo-m-xylene,2,6-dimethyl-4-bromoaniline,4-bromo-2,6-dimethylbenzenamine,4-bromo-2,6-dimethylphenylamine,4-bromo-2,6-dimethyl-aniline,4-bromo-2,6-dimethylaniline,4-bromo-2,6-dimethyl-benzenamine PubChem CID: 90549 IUPAC Name: 4-bromo-2,6-dimethylaniline SMILES: CC1=CC(Br)=CC(C)=C1N
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
2,5-Dibromo-p-xylene 98.0+%, TCI America™
CAS: 1074-24-4 Molecular Formula: C8H8Br2 Molecular Weight (g/mol): 263.96 MDL Number: MFCD00000091 InChI Key: QENIALCDPFDFHX-UHFFFAOYSA-N Synonym: 2,5-dibromo-p-xylene,benzene, 1,4-dibromo-2,5-dimethyl,p-xylene, 2,5-dibromo,2,5-dibromo-1,4-dimethylbenzene,2,5-dimethyl-1,4-dibromobenzene,2,5-dibromo-4-xylene,2,4-dibromobenzene,p-xylene,5-dibromo,pubchem14829,acmc-1c2tg PubChem CID: 66175 IUPAC Name: 1,4-dibromo-2,5-dimethylbenzene SMILES: CC1=CC(Br)=C(C)C=C1Br
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
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
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
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
2,3-Dimethyl-4-fluoronitrobenzene 98.0+%, TCI America™
CAS: 1736-87-4 Molecular Formula: C8H8FNO2 Molecular Weight (g/mol): 169.155 MDL Number: MFCD05663712 InChI Key: GLDMIZKOJPVEIV-UHFFFAOYSA-N Synonym: 2,3-dimethyl-4-fluoronitrobenzene,3-fluoro-6-nitro-1,2-dimethylbenzene,3-fluoro-6-nitro-o-xylene,benzene, 1-fluoro-2,3-dimethyl-4-nitro,3-fluoro-1,2-dimethyl-6-nitrobenzene,4-fluoro-2,3-dimethyl nitrobenzene,intermediates-zcf02291,ksc534o2t,2,3-dimethyl-1-fluoro-4-nitrobenzene,4-fluoro-2,3-dimethyl-1-nitrobenzene PubChem CID: 24721201 IUPAC Name: 1-fluoro-2,3-dimethyl-4-nitrobenzene SMILES: CC1=C(C=CC(=C1C)F)[N+](=O)[O-]
2,5-Dimethyl-1,4-phenylenediamine 98.0+%, TCI America™
CAS: 6393-01-7 Molecular Formula: C8H12N2 Molecular Weight (g/mol): 136.20 MDL Number: MFCD00052675 InChI Key: BWAPJIHJXDYDPW-UHFFFAOYSA-N Synonym: 2,5-dimethyl-1,4-benzenediamine,4-amino-2,5-dimethylaniline,2,5-dimethyl-1,4-phenylenediamine,2,5-dimethyl-p-phenylenediamine,2,5-diamino-p-xylene,2,5-dimethylphenylene-1,4-diamine,2,5-dimethyl-1,4-benzoquinonediamine,ccris 8118,1,4-dimethylphenylene-2,5-diamine,unii-re400vn2b4 PubChem CID: 160824 ChEBI: CHEBI:53613 IUPAC Name: 2,5-dimethylbenzene-1,4-diamine SMILES: CC1=CC(=C(C=C1N)C)N