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.
4-Ethyl-o-xylene 99.0+%, TCI America™
CAS: 934-80-5 Molecular Formula: C10H14 Molecular Weight (g/mol): 134.222 MDL Number: MFCD00059234 InChI Key: SBUYFICWQNHBCM-UHFFFAOYSA-N Synonym: 4-ethyl-o-xylene,1,2-dimethyl-4-ethylbenzene,2-methyl-p-ethyltoluene,3,4-dimethylethylbenzene,o-xylene, 4-ethyl,benzene, 4-ethyl-1,2-dimethyl,acmc-209rm3,1-ethyl-3,4-dimethylbenzene,3,4-dimethyl-1-ethylbenzene,1,2-dimethyl-4-ethyl benzene PubChem CID: 13629 IUPAC Name: 4-ethyl-1,2-dimethylbenzene SMILES: CCC1=CC(=C(C=C1)C)C
Amitraz 97.0+%, TCI America™
CAS: 33089-61-1 Molecular Formula: C19H23N3 Molecular Weight (g/mol): 293.414 MDL Number: MFCD00069396 InChI Key: QXAITBQSYVNQDR-UHFFFAOYSA-N Synonym: amitraz,mitac,taktic,triazid,azaform,mitaban,acarac,baam,azadieno,ectodex PubChem CID: 36324 ChEBI: CHEBI:2665 IUPAC Name: N'-(2,4-dimethylphenyl)-N-[(2,4-dimethylphenyl)iminomethyl]-N-methylmethanimidamide SMILES: CC1=CC(=C(C=C1)N=CN(C)C=NC2=C(C=C(C=C2)C)C)C
2,6-Dimethylanisole 98.0+%, TCI America™
CAS: 1004-66-6 Molecular Formula: C9H12O Molecular Weight (g/mol): 136.19 MDL Number: MFCD00008380 InChI Key: GFNZJAUVJCGWLW-UHFFFAOYSA-N Synonym: 2,6-dimethylanisole,2-methoxy-m-xylene,benzene, 2-methoxy-1,3-dimethyl,1,3-dimethyl-2-methoxybenzene,pubchem4115,2,6-dimethyl anisole,acmc-1buuc,ksc493q8r,2,6-dimethylphenyl methyl ether PubChem CID: 66088 IUPAC Name: 2-methoxy-1,3-dimethylbenzene SMILES: COC1=C(C)C=CC=C1C
3,4-Dimethylaniline 99.0+%, TCI America™
CAS: 95-64-7 Molecular Formula: C8H11N Molecular Weight (g/mol): 121.18 MDL Number: MFCD00007810 InChI Key: DOLQYFPDPKPQSS-UHFFFAOYSA-N Synonym: 3,4-xylidine,4-amino-o-xylene,3,4-xylylamine,3,4-dimethylphenylamine,benzenamine, 3,4-dimethyl,3,4-dimethylbenzenamine,3,4-dimethylaminobenzene,1-amino-3,4-dimethylbenzene,4-amino-1,2-dimethylbenzene,aniline, 3,4-dimethyl PubChem CID: 7248 ChEBI: CHEBI:39901 IUPAC Name: 3,4-dimethylaniline SMILES: CC1=CC=C(N)C=C1C
4-Ethyl-m-xylene 95.0+%, TCI America™
CAS: 874-41-9 Molecular Formula: C10H14 Molecular Weight (g/mol): 134.222 MDL Number: MFCD00039905 InChI Key: MEMBJMDZWKVOTB-UHFFFAOYSA-N Synonym: 4-ethyl-m-xylene,1,3-dimethyl-4-ethylbenzene,benzene, 1-ethyl-2,4-dimethyl,m-xylene, 4-ethyl,1,3-dimethyl-4-ethyl benzene,benzene,1-ethyl-2,4-dimethyl,4-ethyl-1,3-xylene,acmc-1blmc,2,4-dimethylethylbenzene,2,4-dimethyl-1-ethylbenzene PubChem CID: 13403 IUPAC Name: 1-ethyl-2,4-dimethylbenzene SMILES: CCC1=C(C=C(C=C1)C)C
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
3,5-Dimethylbenzoic Acid 99.0+%, TCI America™
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
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
Xylenes, ACS Reagent (Dimethylbenzenes), Reagents
Xylenes, ACS Reagent (Dimethylbenzenes), ACS, for general laboratory use. Manufactured in ISO 9001 facility.
Xylenes/Ethanol, 50/50 v/v, Reagents
CAS: 1330-20-7 Molecular Formula: C8H10 Molecular Weight (g/mol): 106.17 InChI Key: IVSZLXZYQVIEFR-UHFFFAOYSA-N IUPAC Name: 1,3-xylene SMILES: CC1=CC(C)=CC=C1
Xylenes, Purified (Dimethylbenzenes), Reagents
CAS: 1330-20-7 Molecular Formula: C8H10 Molecular Weight (g/mol): 106.17 InChI Key: IVSZLXZYQVIEFR-UHFFFAOYSA-N Synonym: Methyl Toluene, Dimethylbenzenes IUPAC Name: 1,3-xylene SMILES: CC1=CC(C)=CC=C1
Xylene Cyanole Indicator, 0.005%, Reagents
Xylene Cyanole Indicator, 0.005%, Reagent, for general laboratory use. Manufactured in ISO 9001 facility.
Xylenes, ≥98.5%, ACS Reagent, xylenes plus ethylbenzene basis, Solstice
CAS: 1330-20-7 MDL Number: MFCD00077264
o-Xylene, CHROMASOLV™ Plus, for HPLC, 98%, Solstice
CAS: 95-47-6 Molecular Formula: C8H10 Molecular Weight (g/mol): 106.17 MDL Number: MFCD00008519 InChI Key: CTQNGGLPUBDAKN-UHFFFAOYSA-N Synonym: o-xylene,1,2-dimethylbenzene,ortho-xylene,o-xylol,o-methyltoluene,o-dimethylbenzene,2-xylene,3,4-xylene,benzene, 1,2-dimethyl,o-xylenes PubChem CID: 7237 ChEBI: CHEBI:28063 IUPAC Name: 1,2-xylene SMILES: CC1=CC=CC=C1C
Sigma Aldrich alpha,alpha'-Dibromo-p-xylene
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