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.
3,4-Dimethylphenylacetic acid, 98%
CAS: 17283-16-8 Molecular Formula: C10H11O2 Molecular Weight (g/mol): 163.20 MDL Number: MFCD02664684 InChI Key: OTTPBKINJOYJGW-UHFFFAOYSA-M PubChem CID: 296013 IUPAC Name: 2-(3,4-dimethylphenyl)acetic acid SMILES: CC1=CC=C(CC([O-])=O)C=C1C
Thermo Scientific Chemicals Gemfibrozil, 98%
CAS: 25812-30-0 Molecular Formula: C15H22O3 Molecular Weight (g/mol): 250.34 MDL Number: MFCD00079335 InChI Key: HEMJJKBWTPKOJG-UHFFFAOYSA-N Synonym: gemfibrozil,lopid,5-2,5-dimethylphenoxy-2,2-dimethylpentanoic acid,jezil,decrelip,lipur,bolutol,apo-gemfibrozil,gemfibromax,cholespid PubChem CID: 3463 ChEBI: CHEBI:5296 IUPAC Name: 5-(2,5-dimethylphenoxy)-2,2-dimethylpentanoic acid SMILES: CC1=CC=C(C)C(OCCCC(C)(C)C(O)=O)=C1
Lidocaine, 99.9%, MP Biomedicals™
CAS: 137-58-6 Molecular Formula: C14H22N2O Molecular Weight (g/mol): 234.343 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
2,3-Dimethylaniline, 98%
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
Xylenes , Macron Fine Chemicals™
CAS: 1330-20-7 Molecular Formula: C6H4(CH3)2
2,6-Dimethylbenzonitrile, 97%
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
3,5-Dimethylphenylacetic acid, 98+%
CAS: 42288-46-0 Molecular Formula: C10H11O2 Molecular Weight (g/mol): 163.20 MDL Number: MFCD00082776 InChI Key: HDNBKTWQBJJYPD-UHFFFAOYSA-M Synonym: 3,5-dimethylphenylacetic acid,2-3,5-dimethylphenyl acetic acid,3,5-dimethylphenyl acetic acid,benzeneacetic acid, 3,5-dimethyl,3,5-xylyl acetic acid,acmc-20anc9,ksc238q4h,3,5-dimethylbenzeneacetic acid,3,5-dimethyl-phenyl-acetic acid PubChem CID: 4749495 IUPAC Name: 2-(3,5-dimethylphenyl)acetic acid SMILES: CC1=CC(CC([O-])=O)=CC(C)=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
3,3',4,4'-Tetramethylbiphenyl, 98%
CAS: 4920-95-0 Molecular Formula: C16H18 Molecular Weight (g/mol): 210.32 MDL Number: MFCD00130219 InChI Key: YXBIAYXZUDJVEB-UHFFFAOYSA-N Synonym: 3,3',4,4'-tetramethylbiphenyl,3,3',4,4'-tetramethyl-1,1'-biphenyl,3,4,3',4'-tetramethylbiphenyl,1,1'-biphenyl, 3,3',4,4'-tetramethyl,biphenyl, 3,3',4,4'-tetramethyl,3,3',4,4'-tetramethyldiphenyl,4-3,4-dimethylphenyl-1,2-dimethylbenzene,acmc-20anh7,amtda180,4-05-00-01956 beilstein handbook reference PubChem CID: 21029 IUPAC Name: 4-(3,4-dimethylphenyl)-1,2-dimethylbenzene SMILES: CC1=CC=C(C=C1C)C1=CC=C(C)C(C)=C1
2,5-Dimethylbenzenesulfonic acid hydrate, 98%
CAS: 609-54-1 Molecular Formula: C8H10O3S Molecular Weight (g/mol): 186.23 MDL Number: MFCD00151010 InChI Key: IRLYGRLEBKCYPY-UHFFFAOYSA-N Synonym: p-xylene-2-sulfonic acid,unii-l1sea5qnp9,p-xylene-2-sulphonic acid,benzenesulfonic acid, 2,5-dimethyl,l1sea5qnp9,2,4-xylenesulfonic acid hydrate,2,5-dimethyl-benzenesulfonic acid,2,5-xylenesulfonic acid,p-xylenesulfonic acid,dsstox_cid_21641 PubChem CID: 11868 IUPAC Name: 2,5-dimethylbenzenesulfonic acid SMILES: CC1=CC=C(C)C(=C1)S(O)(=O)=O
3-Bromo-o-xylene, 99%
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
4-Nitro-o-xylene, 99%
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
3,4-Dimethylthiobenzamide, 97%, Thermo Scientific Chemicals
CAS: 58952-03-7 Molecular Formula: C9H11NS Molecular Weight (g/mol): 165.25 MDL Number: MFCD06738326 InChI Key: MGSZKKVFYBQMPF-UHFFFAOYSA-N Synonym: 3,4-dimethyl-thiobenzamide,3,4-dimethylthiobenzamide,3,4-dimethylbenzothioamide,3,4-dimethylbenzene-1-carbothioamide,3,4-dimethyl-thiobenzamid PubChem CID: 20470851 IUPAC Name: 3,4-dimethylbenzenecarbothioamide SMILES: CC1=C(C)C=C(C=C1)C(N)=S
3-Fluoro-o-xylene, 99%
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, USP, 97.5-102.5%, Spectrum™ Chemical
CAS: 137-58-6 Molecular Formula: C14H22N2O Molecular Weight (g/mol): 234.34 InChI Key: NNJVILVZKWQKPM-UHFFFAOYSA-N IUPAC Name: 2-(diethylamino)-N-(2,6-dimethylphenyl)acetamide SMILES: CCN(CC)CC(=O)NC1=C(C)C=CC=C1C