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-Dimethylphenol, 99+%
CAS: 95-87-4 Molecular Formula: C8H10O Molecular Weight (g/mol): 122.17 MDL Number: MFCD00002237 InChI Key: NKTOLZVEWDHZMU-UHFFFAOYSA-N Synonym: 2,5-xylenol,p-xylenol,phenol, 2,5-dimethyl,3,6-dimethylphenol,6-methyl-m-cresol,3,6-xylenol,2,5-dimethyl phenol,2,5-dmp,1,2,5-xylenol,1-hydroxy-2,5-dimethylbenzene PubChem CID: 7267 IUPAC Name: 2,5-dimethylphenol SMILES: CC1=CC=C(C)C(O)=C1
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
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
2,5-Dimethylbenzenesulfonic acid hydrate, 98%
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-dimethylbenzenesulfonic acid SMILES: CC1=CC=C(C)C(=C1)S(O)(=O)=O
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
3,4-Dimethylanisole, 99%
CAS: 4685-47-6 Molecular Formula: C9H12O Molecular Weight (g/mol): 136.194 MDL Number: MFCD00008396 InChI Key: LVUBSVWMOWKPDJ-UHFFFAOYSA-N Synonym: 3,4-dimethylanisole,4-methoxy-1,2-dimethyl-benzene,4-methoxy-o-xylene,benzene, 4-methoxy-1,2-dimethyl,3,4-dimethyl anisole,1,2-dimethyl-4-methoxybenzene,3,4-dimethylphenyl methyl ether,acmc-20anel,pubchem5361 PubChem CID: 78411 IUPAC Name: 4-methoxy-1,2-dimethylbenzene SMILES: CC1=C(C=C(C=C1)OC)C
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-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
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
2,4-Dimethylbenzeneboronic acid, 97%
CAS: 55499-44-0 Molecular Formula: C8H11BO2 Molecular Weight (g/mol): 149.984 MDL Number: MFCD02683101 InChI Key: TYONHSPZXLFWKI-UHFFFAOYSA-N Synonym: 2,4-dimethylphenyl boronic acid,2,4-dimethylbenzeneboronic acid,2,4-dimethyl phenyl boronic acid,2,4-dimethylphenylboronicacid,4-dimethylphenylboronic acid,boronic acid, 2,4-dimethylphenyl,4-borono-m-xylene,pubchem9565,m-xylene-4-boronic acid,acmc-1ay9d PubChem CID: 4198739 IUPAC Name: (2,4-dimethylphenyl)boronic acid SMILES: B(C1=C(C=C(C=C1)C)C)(O)O
Mexiletine hydrochloride
CAS: 1-4-5370 Molecular Formula: C11H17NO·HCl Molecular Weight (g/mol): 215.72 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
Lidocaine, 99.9%, MP Biomedicals™
CAS: 137-58-6 Molecular Formula: C14H22N2O Molecular Weight (g/mol): 234.343 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
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-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
