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-Chloro-m-xylene 98.0+%, TCI America™
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
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
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
2,3-Dimethylaniline 99.0+%, TCI America™
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
Mexiletine Hydrochloride 98.0+%, TCI America™
CAS: 1-4-5370 Molecular Formula: C11H18ClNO Molecular Weight (g/mol): 215.72 MDL Number: MFCD00216024 InChI Key: NFEIBWMZVIVJLQ-UHFFFAOYNA-N Synonym: mexiletine hydrochloride,mexitil,mexiletine hcl,mexiletene hydrochloride,1-2,6-dimethylphenoxy-2-propanamine hydrochloride,1-2,6-dimethylphenoxy propan-2-amine hydrochloride,2-propanamine, 1-2,6-dimethylphenoxy-, hydrochloride,mexitil tn,1-2,6-xylyloxy-2-aminopropane hydrochloride PubChem CID: 21467 ChEBI: CHEBI:6917 IUPAC Name: 1-(2,6-dimethylphenoxy)propan-2-amine;hydrochloride SMILES: CC1=C(C(=CC=C1)C)OCC(C)N.Cl
4,5-Dimethyl-1,2-phenylenediamine 98.0+%, TCI America™
CAS: 3171-45-7 Molecular Formula: C8H12N2 Molecular Weight (g/mol): 136.20 MDL Number: MFCD00007729 InChI Key: XSZYBMMYQCYIPC-UHFFFAOYSA-N Synonym: 4,5-dimethyl-1,2-phenylenediamine,4,5-diamino-o-xylene,4,5-dimethyl-o-phenylenediamine,1,2-benzenediamine, 4,5-dimethyl,1,2-diamino-4,5-dimethylbenzene,4,5-dimethyl-1,2-benzenediamine,4,5-dimethyl-benzene-1,2-diamine,4,5-dimethyl-ortho-phenylenediamine,4,5-dimethylphenylene-1,2-diamine,4,5-dimethyl-o-phenylenediamine monohydrate PubChem CID: 76635 IUPAC Name: 4,5-dimethylbenzene-1,2-diamine SMILES: CC1=CC(N)=C(N)C=C1C
2,4-Dimethylbenzoic Acid 99.0+%, TCI America™
CAS: 611-01-8 Molecular Formula: C9H10O2 Molecular Weight (g/mol): 150.18 MDL Number: MFCD00002480 InChI Key: BKYWPNROPGQIFZ-UHFFFAOYSA-N Synonym: benzoic acid, 2,4-dimethyl,4-carboxy-1,3-dimethylbenzene,2,4-dimethyl benzoic acid,m-xylene-4-carboxylic acid,2,4-dimethyl-benzoic acid,2,4-dimethylbenzoicacid,m-xylylic acid,pubchem15441,2,4 dimethylbenzoic acid,benzoic acid,4-dimethyl PubChem CID: 11897 ChEBI: CHEBI:64811 IUPAC Name: 2,4-dimethylbenzoic acid SMILES: CC1=CC=C(C(O)=O)C(C)=C1
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
2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 98.0+%, TCI America™
CAS: 401797-00-0 Molecular Formula: C14H21BO2 Molecular Weight (g/mol): 232.13 MDL Number: MFCD12405519 InChI Key: HWIMTTLCFONAAB-UHFFFAOYSA-N Synonym: 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-o-xylene, 3,4-Dimethylphenylboronic Acid Pinacol Ester PubChem CID: 15906194 IUPAC Name: 2-(3,4-dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane SMILES: B1(OC(C(O1)(C)C)(C)C)C2=CC(=C(C=C2)C)C
3,5-Dimethyl-4-propoxyphenylboronic Acid (contains varying amounts of Anhydride), TCI America™
CAS: 357611-51-9 | C11H17BO3 | 208.064 g/mol
Bis(2,4-dimethylphenyl)amine 98.0+%, TCI America™
CAS: 19616-28-5 Molecular Formula: C16H19N Molecular Weight (g/mol): 225.34 MDL Number: MFCD16619146 InChI Key: MAINCNYZMOMWRA-UHFFFAOYSA-N Synonym: Di-2,4-xylylamine PubChem CID: 21989085 IUPAC Name: N-(2,4-dimethylphenyl)-2,4-dimethylaniline SMILES: CC1=CC(C)=C(NC2=C(C)C=C(C)C=C2)C=C1
3-Iodo-o-xylene 97.0+%, TCI America™
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
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-Bromo-p-xylene 99.0+%, TCI America™
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
N-tert-Butyl-3,5-dimethylaniline 98.0+%, TCI America™
CAS: 110993-40-3 Molecular Formula: C12H19N Molecular Weight (g/mol): 177.291 InChI Key: HMWHVIXDKZHDEO-UHFFFAOYSA-N Synonym: n-tert-butyl-3,5-dimethylaniline,n-tert-butyl-3,5-xylidine,3,5-dimethyl-n-tert-butylaniline,n-1,1-dimethylethyl-3,5-dimethyl benzenamine,benzenamine,n-1,1-dimethylethyl-3,5-dimethyl PubChem CID: 5242234 IUPAC Name: N-tert-butyl-3,5-dimethylaniline SMILES: CC1=CC(=CC(=C1)NC(C)(C)C)C