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.
Lidocaine, 97.5%
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
2,6-Dimethylaniline, 99%
CAS: 87-62-7 Molecular Formula: C8H11N Molecular Weight (g/mol): 121.18 MDL Number: MFCD00007747 InChI Key: UFFBMTHBGFGIHF-UHFFFAOYSA-N Synonym: 2,6-xylidine,2-amino-m-xylene,o-xylidine,2,6-dimethylbenzenamine,2-amino-1,3-dimethylbenzene,2,6-dimethylphenylamine,benzenamine, 2,6-dimethyl,2,6-xylylamine,2-amino-1,3-xylene,1-amino-2,6-dimethylbenzene PubChem CID: 6896 ChEBI: CHEBI:28738 IUPAC Name: 2,6-dimethylaniline SMILES: CC1=CC=CC(C)=C1N
2,5-Dimethylphenol, 99+%
CAS: 95-87-4 Molecular Formula: C8H10O Molecular Weight (g/mol): 122.17 MDL Number: MFCD00002237 InChI Key: NKTOLZVEWDHZMU-UHFFFAOYSA-N Synonym: 2,5-xylenol,p-xylenol,phenol, 2,5-dimethyl,3,6-dimethylphenol,6-methyl-m-cresol,3,6-xylenol,2,5-dimethyl phenol,2,5-dmp,1,2,5-xylenol,1-hydroxy-2,5-dimethylbenzene PubChem CID: 7267 IUPAC Name: 2,5-dimethylphenol SMILES: CC1=CC=C(C)C(O)=C1
2,5-Dimethylaniline, 98+%
CAS: 95-78-3 Molecular Formula: C8H11N Molecular Weight (g/mol): 121.18 MDL Number: MFCD00007743 InChI Key: VOWZNBNDMFLQGM-UHFFFAOYSA-N Synonym: 2,5-xylidine,p-xylidine,2,5-dimethylphenylamine,2-amino-1,4-xylene,2,5-dimethylbenzenamine,benzenamine, 2,5-dimethyl,5-methyl-o-toluidine,6-methyl-m-toluidine,1-amino-2,5-dimethylbenzene,p-dimethylaniline PubChem CID: 7259 ChEBI: CHEBI:518305 IUPAC Name: 2,5-dimethylaniline SMILES: CC1=CC=C(C)C(N)=C1
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
2,6-Dimethylaniline, 99%
CAS: 87-62-7 Molecular Formula: C8H11N Molecular Weight (g/mol): 121.18 MDL Number: MFCD00007747 InChI Key: UFFBMTHBGFGIHF-UHFFFAOYSA-N Synonym: 2,6-xylidine,2-amino-m-xylene,o-xylidine,2,6-dimethylbenzenamine,2-amino-1,3-dimethylbenzene,2,6-dimethylphenylamine,benzenamine, 2,6-dimethyl,2,6-xylylamine,2-amino-1,3-xylene,1-amino-2,6-dimethylbenzene PubChem CID: 6896 ChEBI: CHEBI:28738 IUPAC Name: 2,6-dimethylaniline SMILES: CC1=CC=CC(C)=C1N
2,4-Dimethylaniline, 99%
CAS: 95-68-1 Molecular Formula: C8H11N Molecular Weight (g/mol): 121.18 MDL Number: MFCD00007738 InChI Key: CZZZABOKJQXEBO-UHFFFAOYSA-N Synonym: 2,4-xylidine,2,4-dimethyl aniline,m-xylidine,m-4-xylidine,2,4-dimethylphenylamine,benzenamine, 2,4-dimethyl,2-methyl-p-toluidine,4-methyl-o-toluidine,1-amino-2,4-dimethylbenzene,4-amino-1,3-xylene PubChem CID: 7250 ChEBI: CHEBI:27840 IUPAC Name: 2,4-dimethylaniline SMILES: CC1=CC(=C(C=C1)N)C
2-Bromo-m-xylene, 98+%
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
Chlorobis(3,5-dimethylphenyl)phosphine, tech. 90%
CAS: 74289-57-9 Molecular Formula: C16H18ClP Molecular Weight (g/mol): 276.744 MDL Number: MFCD01630841 InChI Key: FCEBDAANWYNQMO-UHFFFAOYSA-N Synonym: bis 3,5-dimethylphenyl chlorophosphine,chlorobis 3,5-dimethylphenyl phosphine,chlorobis 3,5-dimethylphenyl phosphane,chloro-bis 3,5-dimethylphenyl phosphane,bis 3,5-dimethylphenyl phosphinous chloride,phosphinous chloride, bis 3,5-dimethylphenyl,bis 3,5-dimethylphenyl chlorophosphine, tech,phosphinous chloride,p,p-bis 3,5-dimethylphenyl PubChem CID: 4187520 IUPAC Name: chloro-bis(3,5-dimethylphenyl)phosphane SMILES: CC1=CC(=CC(=C1)P(C2=CC(=CC(=C2)C)C)Cl)C
2-Bromo-p-xylene, 98+%
CAS: 553-94-6 Molecular Formula: C8H9Br Molecular Weight (g/mol): 185.06 MDL Number: MFCD00000074 InChI Key: QXISTPDUYKNPLU-UHFFFAOYSA-N Synonym: 2,5-dimethylbromobenzene,2-bromo-p-xylene,1-bromo-2,5-dimethylbenzene,benzene, 2-bromo-1,4-dimethyl,bromo-p-xylene,2-bromo-1,4-dimethyl-benzene,2,5-xylyl bromide,2-bromo-1,4-xylene,2,5-dimethylphenyl bromide,p-xylene, 2-bromo PubChem CID: 11121 IUPAC Name: 2-bromo-1,4-dimethylbenzene SMILES: CC1=CC=C(C)C(Br)=C1
5-Bromo-2-fluoro-m-xylene, 97%
CAS: 99725-44-7 Molecular Formula: C8H8BrF Molecular Weight (g/mol): 203.054 MDL Number: MFCD01320701 InChI Key: ZXPHUVHMBKRRJF-UHFFFAOYSA-N Synonym: 5-bromo-2-fluoro-m-xylene,5-bromo-2-fluoro-3-xylene,4-bromo-2,6-dimethylfluorobenzene,1-bromo-4-fluoro-3,5-dimethylbenzene,5-bromo-2-fluoro-1,3-xylene,benzene, 5-bromo-2-fluoro-1,3-dimethyl,3,5-dimethyl-4-fluorobromobenzene,5-bromo-2-fluoro-1,3-dimethyl-benzene,ksc486i9j PubChem CID: 2736298 IUPAC Name: 5-bromo-2-fluoro-1,3-dimethylbenzene SMILES: CC1=CC(=CC(=C1F)C)Br
3,5-Dimethylphenyl isocyanate, 97%
CAS: 54132-75-1 Molecular Formula: C9H9NO Molecular Weight (g/mol): 147.177 MDL Number: MFCD00013868 InChI Key: DZSGDHNHQAJZCO-UHFFFAOYSA-N Synonym: 3,5-dimethylphenyl isocyanate,3,5-dimethylphenylisocyanate,3,5-xylyl isocyanate,benzene, 1-isocyanato-3,5-dimethyl,isocyanic acid 3,5-dimethylphenyl ester,5-isocyanato-m-xylene,1-isocyanato-3,5-dimethyl-benzene,acmc-1axct,3,5-dimethylbenzenisocyanate,ksc274i2t PubChem CID: 521488 IUPAC Name: 1-isocyanato-3,5-dimethylbenzene SMILES: CC1=CC(=CC(=C1)N=C=O)C
4-Fluoro-o-xylene, 98%
CAS: 452-64-2 Molecular Formula: C8H9F Molecular Weight (g/mol): 124.158 MDL Number: MFCD00039217 InChI Key: WYHBENDEZDFJNU-UHFFFAOYSA-N Synonym: 4-fluoro-o-xylene,1,2-dimethyl-4-fluorobenzene,3,4-dimethylfluorobenzene,4-fluoro-1,2-xylene,1-fluoro-3,4-dimethylbenzene,benzene, 4-fluoro-1,2-dimethyl,o-xylene, 4-fluoro,pubchem14118,acmc-1afww,3,4-dimethyl fluorobenzene PubChem CID: 253306 IUPAC Name: 4-fluoro-1,2-dimethylbenzene SMILES: CC1=C(C=C(C=C1)F)C
2-Iodo-4,6-dimethylaniline, 98%, Thermo Scientific Chemicals
CAS: 4102-54-9 Molecular Formula: C8H10IN Molecular Weight (g/mol): 247.079 MDL Number: MFCD07779005 InChI Key: ODPOIEACUVQCBZ-UHFFFAOYSA-N Synonym: 2,4-dimethyl-6-iodoaniline,2-iodo-4,6-di-methylaniline,benzenamine,2-iodo-4,6-dimethyl PubChem CID: 14040290 IUPAC Name: 2-iodo-4,6-dimethylaniline SMILES: CC1=CC(=C(C(=C1)I)N)C