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-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
4-Bromo-2,6-dimethylanisole, 99%
CAS: 14804-38-7 Molecular Formula: C9H11BrO Molecular Weight (g/mol): 215.09 MDL Number: MFCD00143259 InChI Key: MMARFGDTMJBIBK-UHFFFAOYSA-N Synonym: 4-bromo-2,6-dimethylanisole,5-bromo-2-methoxy-m-xylene,4-brom-2,6-dimethylanisole,1-bromo-3,5-dimethyl-4-methoxybenzene,2,6-dimethyl-4-bromoanisole,benzene, 5-bromo-2-methoxy-1,3-dimethyl,timtec-bb sbb005776,attercop-chm at108629,4-bromo-2,6-dimethyl-methoxybenzene,pubchem2654 PubChem CID: 278654 IUPAC Name: 5-bromo-2-methoxy-1,3-dimethylbenzene SMILES: COC1=C(C)C=C(Br)C=C1C
2,5-Dimethylbenzoic acid, 98%
CAS: 610-72-0 Molecular Formula: C9H10O2 Molecular Weight (g/mol): 150.18 MDL Number: MFCD00002482 InChI Key: XZRHNAFEYMSXRG-UHFFFAOYSA-N Synonym: benzoic acid, 2,5-dimethyl,isoxylic acid,2,5-dimethyl benzoic acid,unii-rke5pmk0h6,2,5-dimethyl-benzoic acid,2-carboxy-1,4-dimethylbenzene,rke5pmk0h6,p-xylene-2-carboxylic acid,2,5-dimethylbenzenecarboxylic acid,2,5-dimethylbenzoicacid PubChem CID: 11892 ChEBI: CHEBI:64825 IUPAC Name: 2,5-dimethylbenzoic acid SMILES: CC1=CC(=C(C=C1)C)C(=O)O
5-Iodo-m-xylene 98.0+%, TCI America™
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
2,4-Dimethylphenol 98.0+%, TCI America™
CAS: 105-67-9 Molecular Formula: C8H10O Molecular Weight (g/mol): 122.167 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
Lidocaine 99.0+%, TCI America™
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
1-(2,6-Dimethylphenoxy)-2-propanone 95.0+%, TCI America™
CAS: 53012-41-2 Molecular Formula: C11H14O2 Molecular Weight (g/mol): 178.231 MDL Number: MFCD00130266 InChI Key: XDJULAUHYAJQBU-UHFFFAOYSA-N Synonym: (2,6-Dimethylphenoxy)acetone PubChem CID: 104378 IUPAC Name: 1-(2,6-dimethylphenoxy)propan-2-one SMILES: CC1=C(C(=CC=C1)C)OCC(=O)C
2,6-Dimethylbenzoic Acid 98.0+%, TCI America™
CAS: 632-46-2 Molecular Formula: C9H10O2 Molecular Weight (g/mol): 150.177 MDL Number: MFCD00002483 InChI Key: HCBHQDKBSKYGCK-UHFFFAOYSA-N Synonym: benzoic acid, 2,6-dimethyl,2,6-dimethylbenzoicacid,2,6-dimethyl-benzoic acid,vic-m-xylylic acid,2,6-dimethyl benzoic acid,m-xylene-2-carboxylic acid,2,6-dimethylbenzene carboxylic acid,benzoic acid, 2,6-dimethyl-7ci,8ci,9ci,zlchem 286,vic.-m-xylylic acid PubChem CID: 12439 ChEBI: CHEBI:64827 IUPAC Name: 2,6-dimethylbenzoic acid SMILES: CC1=C(C(=CC=C1)C)C(=O)O
Dexmedetomidine Hydrochloride 98.0+%, TCI America™
CAS: 145108-58-3 Molecular Formula: C13H17ClN2 Molecular Weight (g/mol): 236.743 MDL Number: MFCD12912677 InChI Key: VPNGEIHDPSLNMU-MERQFXBCSA-N Synonym: dexmedetomidine hydrochloride,dexmedetomidine hcl,precedex,4-s-alpha,2,3-trimethylbenzyl imidazole monohydrochloride,unii-1018wh7f9i,dexmedetomidine hcl precedex,s-5-1-2,3-dimethylphenyl ethyl-1h-imidazole hydrochloride,dexdor,4-1s-1-2,3-dimethylphenyl ethyl-1h-imidazole hydrochloride PubChem CID: 6918081 ChEBI: CHEBI:31472 IUPAC Name: 5-[(1S)-1-(2,3-dimethylphenyl)ethyl]-1H-imidazole;hydrochloride SMILES: CC1=C(C(=CC=C1)C(C)C2=CN=CN2)C.Cl
2-Amino-3,5-dimethylbenzenesulfonic Acid 97.0+%, TCI America™
CAS: 88-22-2 Molecular Formula: C8H11NO3S Molecular Weight (g/mol): 201.24 MDL Number: MFCD00035770 InChI Key: CFCXQQUQLZIZPI-UHFFFAOYSA-N Synonym: m-Xylidine-6-sulfonic Acid, 2,4-Dimethylaniline-6-sulfonic Acid PubChem CID: 66608 IUPAC Name: 2-amino-3,5-dimethylbenzenesulfonic acid SMILES: CC1=CC(=C(C(=C1)S(=O)(=O)O)N)C
Gemfibrozil 98.0+%, TCI America™
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
3,5-Dimethylphenyl Isocyanate 98.0+%, TCI America™
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-Bromo-2,6-dimethylanisole 96.0+%, TCI America™
CAS: 14804-38-7 Molecular Formula: C9H11BrO Molecular Weight (g/mol): 215.09 MDL Number: MFCD00143259 InChI Key: MMARFGDTMJBIBK-UHFFFAOYSA-N Synonym: 4-bromo-2,6-dimethylanisole,5-bromo-2-methoxy-m-xylene,4-brom-2,6-dimethylanisole,1-bromo-3,5-dimethyl-4-methoxybenzene,2,6-dimethyl-4-bromoanisole,benzene, 5-bromo-2-methoxy-1,3-dimethyl,timtec-bb sbb005776,attercop-chm at108629,4-bromo-2,6-dimethyl-methoxybenzene,pubchem2654 PubChem CID: 278654 IUPAC Name: 5-bromo-2-methoxy-1,3-dimethylbenzene SMILES: COC1=C(C)C=C(Br)C=C1C
p-Xylene-2-sulfonic Acid Hydrate 98.0+%, TCI America™
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-dimethylbenzene-1-sulfonic acid SMILES: CC1=CC=C(C)C(=C1)S(O)(=O)=O
2,5-Dimethylaniline 97.0+%, TCI America™
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