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.
3,5-Dimethylaniline, 97+%
CAS: 108-69-0 Molecular Formula: C8H11N Molecular Weight (g/mol): 121.183 MDL Number: MFCD00007813 InChI Key: MKARNSWMMBGSHX-UHFFFAOYSA-N Synonym: 3,5-xylidine,benzenamine, 3,5-dimethyl,3,5-xylylamine,3,5-dimethylphenylamine,3,5-xylidene,5-amino-1,3-xylene,1-amino-3,5-dimethylbenzene,3,5-dimethylbenzenamine,3,5-dimethylbenzeneamine,5-amino-1,3-dimethylbenzene PubChem CID: 7949 IUPAC Name: 3,5-dimethylaniline SMILES: CC1=CC(=CC(=C1)N)C
3,4-Dimethylbenzamide, 98%
CAS: 5580-33-6 Molecular Formula: C9H11NO Molecular Weight (g/mol): 149.193 MDL Number: MFCD00052960 InChI Key: INGCXEIJXKQPJH-UHFFFAOYSA-N PubChem CID: 21755 IUPAC Name: 3,4-dimethylbenzamide SMILES: CC1=C(C=C(C=C1)C(=O)N)C
2-Fluoro-m-xylene, 98%
CAS: 443-88-9 Molecular Formula: C8H9F Molecular Weight (g/mol): 124.158 MDL Number: MFCD00039215 InChI Key: JTAUTNBVFDTYTI-UHFFFAOYSA-N Synonym: 2,6-dimethylfluorobenzene,2-fluoro-m-xylene,1-fluoro-2,6-dimethylbenzene,1,3-dimethyl-2-fluorobenzene,benzene, 2-fluoro-1,3-dimethyl,2,6-dimethyl fluorobenzene,2-fluoro-1,3-dimethyl-benzene,fr b1 f1,pubchem4407,2-fluoro-3-methyltoluene PubChem CID: 123065 IUPAC Name: 2-fluoro-1,3-dimethylbenzene SMILES: CC1=C(C(=CC=C1)C)F
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
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
3,5-Dimethylbenzoic acid, 98+%
CAS: 499-06-9 Molecular Formula: C9H10O2 Molecular Weight (g/mol): 150.177 MDL Number: MFCD00002525 InChI Key: UMVOQQDNEYOJOK-UHFFFAOYSA-N Synonym: mesitylenic acid,benzoic acid, 3,5-dimethyl,unii-ed8av34n0y,3,5-dimethyl benzoic acid,3,5-dimethyl-benzoic acid,ed8av34n0y,3,5-dimethylbenzoicacid,pubchem15440,3,5-dimethylbezoic acid,3,5 dimethylbenzoic acid PubChem CID: 10356 ChEBI: CHEBI:64821 IUPAC Name: 3,5-dimethylbenzoic acid SMILES: CC1=CC(=CC(=C1)C(=O)O)C
2-Chloro-m-xylene, 98%
CAS: 6781-98-2 Molecular Formula: C8H9Cl Molecular Weight (g/mol): 140.61 MDL Number: MFCD00000565 InChI Key: VDXLAYAQGYCQEO-UHFFFAOYSA-N Synonym: 2-chloro-m-xylene,2,6-dimethylchlorobenzene,m-xylene, 2-chloro,benzene, 2-chloro-1,3-dimethyl,2,6-dimethyl chlorobenzene,2,6-dimethylphenyl chloride,1-chloro-2,6-dimethylbenzene,2,6-dimethylchlorobenzene;2-chloro-m-xylene,2-chloro-meta-xylene,pubchem3643 PubChem CID: 32885 IUPAC Name: 2-chloro-1,3-dimethylbenzene SMILES: CC1=C(C(=CC=C1)C)Cl
5-Iodo-m-xylene, 97%
CAS: 22445-41-6 Molecular Formula: C8H9I Molecular Weight (g/mol): 232.06 MDL Number: MFCD00060659 InChI Key: ZLMKEENUYIUKKC-UHFFFAOYSA-N Synonym: 5-iodo-m-xylene,1,3-dimethyl-5-iodobenzene,benzene, 1-iodo-3,5-dimethyl,3,5-dimethyliodobenzene,pubchem3872,acmc-1ccdf,3,5-dimethyl-1-iodobenzene,ksc422q9l,1-iodo-3,5-dimethylbenzene,# PubChem CID: 140924 IUPAC Name: 1-iodo-3,5-dimethylbenzene SMILES: CC1=CC(I)=CC(C)=C1
4-Iodo-o-xylene, 98+%
CAS: 31599-61-8 Molecular Formula: C8H9I Molecular Weight (g/mol): 232.064 MDL Number: MFCD00040989 InChI Key: CSFRCLYFVINMBZ-UHFFFAOYSA-N Synonym: 4-iodo-o-xylene,1,2-dimethyl-4-iodobenzene,benzene, 4-iodo-1,2-dimethyl,3,4-dimethyliodobenzene,1-iodo-3,4-dimethylbenzene,4-iodo-ortho-xylene,3,4-dimethyl-1-iodobenzene,4-iodo-orthoxylene,4-iodo-0-xylene,pubchem3105 PubChem CID: 141646 IUPAC Name: 4-iodo-1,2-dimethylbenzene SMILES: CC1=C(C=C(C=C1)I)C
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
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-Bromo-N,N,2,6-tetramethylaniline, 98%
CAS: 50638-54-5 Molecular Formula: C10H14BrN Molecular Weight (g/mol): 228.133 MDL Number: MFCD00100113 InChI Key: NDDKEDQKCHIHMI-UHFFFAOYSA-N PubChem CID: 142731 IUPAC Name: 4-bromo-N,N,2,6-tetramethylaniline SMILES: CC1=CC(=CC(=C1N(C)C)C)Br
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
2,5-Dimethylphenyl isocyanate, 97%
CAS: 40397-98-6 Molecular Formula: C9H9NO Molecular Weight (g/mol): 147.18 MDL Number: MFCD00013854 InChI Key: SOXVXJQIQVOCAY-UHFFFAOYSA-N Synonym: 2,5-dimethylphenyl isocyanate,2,5-dimethylphenylisocyanate,benzene, 2-isocyanato-1,4-dimethyl,2,5-dimethyl phenylisocyanate,2,5-dimethylbenzenisocyanate,acmc-1art9,1-isocyanato-2,5-dimethyl-benzene PubChem CID: 98605 ChEBI: CHEBI:60097 IUPAC Name: 2-isocyanato-1,4-dimethylbenzene SMILES: CC1=CC=C(C)C(=C1)N=C=O
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