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.
![[4-Chloro-6-(2,3-xylidino)-2-pyrimidinylthio]acetic Acid 99.0+%, TCI America™](https://assets.fishersci.com/TFS-Assets/CCG/Chemical-Structures/chemical-structure-cas-50892-23-4.jpg-250.jpg)
[4-Chloro-6-(2,3-xylidino)-2-pyrimidinylthio]acetic Acid 99.0+%, TCI America™
CAS: 50892-23-4 Molecular Formula: C14H14ClN3O2S Molecular Weight (g/mol): 323.80 MDL Number: MFCD00191335 InChI Key: SZRPDCCEHVWOJX-UHFFFAOYSA-N Synonym: pirinixic acid,4-chloro-6-2,3-xylidino-2-pyrimidinylthio acetic acid,pirinixic acid inn,unii-86c4mrt55a,ccris 133,acide pirinixique inn-french,acido pirinixico inn-spanish,acidum pirinixicum inn-latin,acetic acid, 4-chloro-6-2,3-dimethylphenyl amino-2-pyrimidinyl thio PubChem CID: 5694 ChEBI: CHEBI:32509 IUPAC Name: 2-({4-chloro-6-[(2,3-dimethylphenyl)amino]pyrimidin-2-yl}sulfanyl)acetic acid SMILES: CC1=CC=CC(NC2=CC(Cl)=NC(SCC(O)=O)=N2)=C1C
2,3,5,6-Tetrabromo-p-xylene 98.0+%, TCI America™
CAS: 23488-38-2 Molecular Formula: C8H6Br4 Molecular Weight (g/mol): 421.752 MDL Number: MFCD00010353 InChI Key: RXKOKVQKECXYOT-UHFFFAOYSA-N Synonym: 1,2,4,5-Tetrabromo-3,6-dimethylbenzene PubChem CID: 31952 IUPAC Name: 1,2,4,5-tetrabromo-3,6-dimethylbenzene SMILES: CC1=C(C(=C(C(=C1Br)Br)C)Br)Br
3,5-Dimethylanisole 98.0+%, TCI America™
CAS: 874-63-5 Molecular Formula: C9H12O Molecular Weight (g/mol): 136.194 MDL Number: MFCD00008398 InChI Key: JCHJBEZBHANKGA-UHFFFAOYSA-N Synonym: 3,5-dimethylanisole,5-methoxy-m-xylene,benzene, 1-methoxy-3,5-dimethyl,1-methoxy-3,5-dimethyl-benzene,3,5-dimethylanisol,3,5-dimethylanizole,acmc-1bkxt,anisole, 3,5-dimethyl,ksc494e7h,5-methoxy-1,3-dimethylbenzene PubChem CID: 70126 IUPAC Name: 1-methoxy-3,5-dimethylbenzene SMILES: CC1=CC(=CC(=C1)OC)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
Mexiletine Hydrochloride 98.0+%, TCI America™
CAS: 1-4-5370 Molecular Formula: C11H18ClNO Molecular Weight (g/mol): 215.72 MDL Number: MFCD00216024 InChI Key: NFEIBWMZVIVJLQ-UHFFFAOYNA-N Synonym: mexiletine hydrochloride,mexitil,mexiletine hcl,mexiletene hydrochloride,1-2,6-dimethylphenoxy-2-propanamine hydrochloride,1-2,6-dimethylphenoxy propan-2-amine hydrochloride,2-propanamine, 1-2,6-dimethylphenoxy-, hydrochloride,mexitil tn,1-2,6-xylyloxy-2-aminopropane hydrochloride PubChem CID: 21467 ChEBI: CHEBI:6917 IUPAC Name: 1-(2,6-dimethylphenoxy)propan-2-amine;hydrochloride SMILES: CC1=C(C(=CC=C1)C)OCC(C)N.Cl
4-Bromo-N,N,3,5-tetramethylaniline 98.0+%, TCI America™
CAS: 14275-09-3 Molecular Formula: C10H14BrN Molecular Weight (g/mol): 228.13 MDL Number: MFCD11036245 InChI Key: AQJHDBKXJXXDKV-UHFFFAOYSA-N Synonym: 2-Bromo-5-(dimethylamino)-m-xylene, 4-Bromo-N,N-dimethyl-3,5-xylidine PubChem CID: 44629944 IUPAC Name: 4-bromo-N,N,3,5-tetramethylaniline SMILES: CN(C)C1=CC(C)=C(Br)C(C)=C1
2,3-Dimethylaniline 99.0+%, TCI America™
CAS: 87-59-2 Molecular Formula: C8H11N Molecular Weight (g/mol): 121.183 MDL Number: MFCD00007732 InChI Key: VVAKEQGKZNKUSU-UHFFFAOYSA-N Synonym: 2,3-xylidine,3-amino-o-xylene,benzenamine, 2,3-dimethyl,2,3-dimethylbenzenamine,2,3-dimethylphenylamine,2,3-xylylamine,ortho-xylidine,vic-o-xylidine,unii-zd450abi9x,ccris 4739 PubChem CID: 6893 IUPAC Name: 2,3-dimethylaniline SMILES: CC1=C(C(=CC=C1)N)C
N,N-Diethyl-2,3-dimethylbenzamide 98.0+%, TCI America™
CAS: 57806-76-5 Molecular Formula: C13H19NO Molecular Weight (g/mol): 205.301 MDL Number: MFCD06797096 InChI Key: SMVYLWURFNYXTP-UHFFFAOYSA-N Synonym: N,N-Diethyl-o-xylene-3-carboxamide PubChem CID: 15621069 IUPAC Name: N,N-diethyl-2,3-dimethylbenzamide SMILES: CCN(CC)C(=O)C1=C(C(=CC=C1)C)C
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
Bis(2,4-dimethylphenyl)amine 98.0+%, TCI America™
CAS: 19616-28-5 Molecular Formula: C16H19N Molecular Weight (g/mol): 225.34 MDL Number: MFCD16619146 InChI Key: MAINCNYZMOMWRA-UHFFFAOYSA-N Synonym: Di-2,4-xylylamine PubChem CID: 21989085 IUPAC Name: N-(2,4-dimethylphenyl)-2,4-dimethylaniline SMILES: CC1=CC(C)=C(NC2=C(C)C=C(C)C=C2)C=C1
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-Iodo-o-xylene 97.0+%, TCI America™
CAS: 31599-60-7 Molecular Formula: C8H9I Molecular Weight (g/mol): 232.064 MDL Number: MFCD00041437 InChI Key: DANMWBNOPFBJSZ-UHFFFAOYSA-N Synonym: 3-iodo-o-xylene,1,2-dimethyl-3-iodobenzene,2,3-dimethyliodobenzene,benzene, 1-iodo-2,3-dimethyl,benzene, iododimethyl,2,3-dimethyl-1-iodobenzene,jodxylol,3-iodo-ortho-xylene,pubchem3865,acmc-1ajf2 PubChem CID: 141645 IUPAC Name: 1-iodo-2,3-dimethylbenzene SMILES: CC1=C(C(=CC=C1)I)C
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
2,5-Dimethylanisole 98.0+%, TCI America™
CAS: 1706-11-2 Molecular Formula: C9H12O Molecular Weight (g/mol): 136.194 MDL Number: MFCD00008378 InChI Key: SJZAUIVYZWPNAS-UHFFFAOYSA-N Synonym: 2,5-dimethylanisole,benzene, 2-methoxy-1,4-dimethyl,unii-rh47bom48g,2-methoxy-p-xylene,rh47bom48g,1,4-dimethyl-2-methyoxybenzene,benzene, 1-methoxy-2,5-dimethyl,1,4-dimethyl-2-methoxybenzene,2,5-dimethylanisol,pubchem5360 PubChem CID: 74350 IUPAC Name: 2-methoxy-1,4-dimethylbenzene SMILES: CC1=CC(=C(C=C1)C)OC
2,3-Dimethylnitrobenzene 99.0+%, TCI America™
CAS: 83-41-0 Molecular Formula: C8H9NO2 Molecular Weight (g/mol): 151.17 MDL Number: MFCD00007162 InChI Key: FVHAWXWFPBPFOS-UHFFFAOYSA-N Synonym: 3-nitro-o-xylene,2,3-dimethylnitrobenzene,nitroxylene,o-xylene, 3-nitro,benzene, 1,2-dimethyl-3-nitro,xylene, ar-nitro,benzene, dimethylnitro,unii-49gnx4cy5w,ccris 3117,49gnx4cy5w PubChem CID: 6739 IUPAC Name: 1,2-dimethyl-3-nitrobenzene SMILES: CC1=CC=CC(=C1C)[N+]([O-])=O