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.
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
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
2,5-Dichloro-p-xylene, 98%
CAS: 1124-05-6 Molecular Formula: C8H8Cl2 Molecular Weight (g/mol): 175.052 MDL Number: MFCD00000610 InChI Key: UTGSRNVBAFCOEU-UHFFFAOYSA-N Synonym: 2,5-dichloro-p-xylene,2,5-dichloro-1,4-dimethylbenzene,benzene, 1,4-dichloro-2,5-dimethyl,p-xylene, 2,5-dichloro,unii-7p8m86zob2,2,5-dichloro-para-xylene,p-xylene,5-dichloro,p-xylene,2,5-dichloro,acmc-2099eq,dsstox_cid_24780 PubChem CID: 70755 IUPAC Name: 1,4-dichloro-2,5-dimethylbenzene SMILES: CC1=CC(=C(C=C1Cl)C)Cl
3,3',5,5'-Tetramethylbiphenyl, 97+%
CAS: 25570-02-9 Molecular Formula: C16H18 Molecular Weight (g/mol): 210.32 MDL Number: MFCD00051910 InChI Key: CMZYGFLOKOQMKF-UHFFFAOYSA-N PubChem CID: 520212 IUPAC Name: 1-(3,5-dimethylphenyl)-3,5-dimethylbenzene SMILES: CC1=CC(=CC(C)=C1)C1=CC(C)=CC(C)=C1
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
3-Nitro-o-xylene, 99%
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
4-Benzyloxy-3,5-dimethylbenzoic acid, 98+%
CAS: 97888-80-7 Molecular Formula: C16H16O3 Molecular Weight (g/mol): 256.301 MDL Number: MFCD00272572 InChI Key: JABUPJCJZZNUFK-UHFFFAOYSA-N Synonym: 4-benzyloxy-3,5-dimethylbenzoic acid,4-benzyloxy-3,5-dimethyl-benzoic acid,3,5-dimethyl-4-phenylmethoxy benzoic acid,4-benzyloxy-3,5-dimethyl-benzoate PubChem CID: 2733993 IUPAC Name: 3,5-dimethyl-4-phenylmethoxybenzoic acid SMILES: CC1=CC(=CC(=C1OCC2=CC=CC=C2)C)C(=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-Chloro-o-xylene, 97%
CAS: 608-23-1 Molecular Formula: C8H9Cl Molecular Weight (g/mol): 140.61 MDL Number: MFCD00060689 InChI Key: NVLHGZIXTRYOKT-UHFFFAOYSA-N Synonym: 3-chloro-o-xylene,2,3-dimethylchlorobenzene,benzene, chlorodimethyl,3-chloro-1,2-dimethylbenzene,3-chloro-ortho-xylene,benzene, 1-chloro-2,3-dimethyl,xylyl chloride,chloro o-xylene,mono-chlorxylol,chloro-ortho-xylene PubChem CID: 32884 IUPAC Name: 1-chloro-2,3-dimethylbenzene SMILES: CC1=C(C(=CC=C1)Cl)C
2,3-Dimethylbenzeneboronic acid, 98%
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-Iodo-p-xylene, 98+%
CAS: 1122-42-5 Molecular Formula: C8H9I Molecular Weight (g/mol): 232.064 MDL Number: MFCD00013708 InChI Key: WYZVNUSNUCABRF-UHFFFAOYSA-N Synonym: 2-iodo-p-xylene,1,4-dimethyl-2-iodobenzene,p-xylene, 2-iodo,1-iodo-2,5-dimethylbenzene,benzene, 2-iodo-1,4-dimethyl,2-iodo-4-xylene,2,5-dimethyliodobenzene,2-iodo-1,4-dimethyl-benzene,2,5-dimethyl-1-iodobenzene,pubchem3875 PubChem CID: 70731 IUPAC Name: 2-iodo-1,4-dimethylbenzene SMILES: CC1=CC(=C(C=C1)C)I
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-Iodo-o-xylene, 97%
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
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
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