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.
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
3-Bromo-o-xylene 98.0+%, TCI America™
CAS: 576-23-8 Molecular Formula: C8H9Br Molecular Weight (g/mol): 185.06 MDL Number: MFCD00000069 InChI Key: WLPXNBYWDDYJTN-UHFFFAOYSA-N Synonym: 3-bromo-o-xylene,3-bromo-1,2-dimethylbenzene,2,3-dimethylbromobenzene,2,3-dimethyl bromobenzene,benzene, bromodimethyl,1-bromo-2,3-dimethyl-benzene,benzene, 1-bromo-2,3-dimethyl,bromoxilene,xylylbromid,bromo-o-xylene PubChem CID: 68472 IUPAC Name: 1-bromo-2,3-dimethylbenzene SMILES: CC1=CC=CC(Br)=C1C
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
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
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-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-Dimethylphenylacetic Acid 98.0+%, TCI America™
CAS: 13612-34-5 Molecular Formula: C10H12O2 Molecular Weight (g/mol): 164.204 MDL Number: MFCD00014369 InChI Key: RUSCTNYOPQOXDJ-UHFFFAOYSA-N Synonym: 2,5-dimethylphenylacetic acid,2-2,5-dimethylphenyl acetic acid,2,5-dimethylphenyl acetic acid,2,5-xylylacetic acid,2,5-dimethylphenylaceticacid,2,5-dimethylbenzeneacetic acid,benzeneacetic acid, 2,5-dimethyl,pubchem22525,acmc-1bb4h PubChem CID: 83615 IUPAC Name: 2-(2,5-dimethylphenyl)acetic acid SMILES: CC1=CC(=C(C=C1)C)CC(=O)O
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
3,4-Dimethyldiphenylamine 98.0+%, TCI America™
CAS: 17802-36-7 Molecular Formula: C14H15N Molecular Weight (g/mol): 197.281 MDL Number: MFCD03093248 InChI Key: ACWJKFBBRPYPLL-UHFFFAOYSA-N Synonym: N-Phenyl-3,4-xylidine, Phenyl(3,4-xylyl)amine PubChem CID: 14958605 IUPAC Name: 3,4-dimethyl-N-phenylaniline SMILES: CC1=C(C=C(C=C1)NC2=CC=CC=C2)C
3,4-Dimethylnitrobenzene 98.0+%, TCI America™
CAS: 99-51-4 Molecular Formula: C8H9NO2 Molecular Weight (g/mol): 151.17 MDL Number: MFCD00007268 InChI Key: HFZKOYWDLDYELC-UHFFFAOYSA-N Synonym: 4-nitro-o-xylene,p-nitro-o-xylene,o-xylene, 4-nitro,benzene, 1,2-dimethyl-4-nitro,para-nitro-ortho-xylene,3,4-dimethyl-1-nitrobenzene,4-nitro-1,2-dimethylbenzene,1,2-dimethyl-4-nitrobenzol,3,4-dimethylnitrobenzene,ccris 3118 PubChem CID: 7440 IUPAC Name: 1,2-dimethyl-4-nitrobenzene SMILES: CC1=CC=C(C=C1C)[N+]([O-])=O
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
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
3,6-Dimethylsalicylaldehyde 98.0+%, TCI America™
CAS: 1666-04-2 Molecular Formula: C9H10O2 Molecular Weight (g/mol): 150.177 MDL Number: MFCD04037328 InChI Key: WTHUWXPBPNTSHJ-UHFFFAOYSA-N Synonym: 2-Hydroxy-3,6-dimethylbenzaldehyde PubChem CID: 819297 IUPAC Name: 2-hydroxy-3,6-dimethylbenzaldehyde SMILES: CC1=C(C(=C(C=C1)C)O)C=O
2,3-Dimethylbenzonitrile 97.0+%, TCI America™
CAS: 5724-56-1 Molecular Formula: C9H9N Molecular Weight (g/mol): 131.18 MDL Number: MFCD00019744 InChI Key: ZEDPQIJYJCPIRM-UHFFFAOYSA-N Synonym: benzonitrile, 2,3-dimethyl,3-cyano-o-xylene,unii-6s215f38ok,2,3-dimethylbenzonitril german,2,3-dimethylbenzenecarbonitrile,2,3-dimethylbenzonitril,dimethylbenzonitrile,pubchem8125,benzonitrile, dimethyl,medetomidine impurity 11 PubChem CID: 79802 IUPAC Name: 2,3-dimethylbenzonitrile SMILES: CC1=CC=CC(C#N)=C1C