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-Bromo-N,N,3,5-tetramethylaniline 98.0+%, TCI America™
CAS: 14275-09-3 Molecular Formula: C10H14BrN Molecular Weight (g/mol): 228.13 MDL Number: MFCD11036245 InChI Key: AQJHDBKXJXXDKV-UHFFFAOYSA-N Synonym: 2-Bromo-5-(dimethylamino)-m-xylene, 4-Bromo-N,N-dimethyl-3,5-xylidine PubChem CID: 44629944 IUPAC Name: 4-bromo-N,N,3,5-tetramethylaniline SMILES: CN(C)C1=CC(C)=C(Br)C(C)=C1
Bis(3,5-dimethylphenyl)phosphine Oxide 96.0+%, TCI America™
CAS: 187344-92-9 Molecular Formula: C16H18OP+ Molecular Weight (g/mol): 257.293 MDL Number: MFCD08458884 InChI Key: LMXRTXPFJNGAAX-UHFFFAOYSA-N Synonym: bis 3,5-dimethylphenyl phosphine oxide,xyl 2p o h,phosphine oxide,bis 3,5-dimethylphenyl,phosphine oxide, bis 3,5-dimethylphenyl,1-3,5-dimethylphenyl phosphoryl-3,5-dimethylbenzene,1-3,5-dimethylphenylphosphoroso-3,5-dimethylbenzene,ksc496c0h,bis 3,5-dimethylphenyl phosphi,3-4-nitrophenyl-beta-alanine,awaysumoanjulo-uhfffaoysa-n PubChem CID: 12022244 IUPAC Name: bis(3,5-dimethylphenyl)-oxophosphanium SMILES: CC1=CC(=CC(=C1)[P+](=O)C2=CC(=CC(=C2)C)C)C
3,5-Dimethylphenyl Isothiocyanate 97.0+%, TCI America™
CAS: 40046-30-8 Molecular Formula: C9H9NS Molecular Weight (g/mol): 163.238 MDL Number: MFCD00041082 InChI Key: DSMXCADWIFIJEX-UHFFFAOYSA-N Synonym: 3,5-dimethylphenyl isothiocyanate,3,5-dimethylphenylisothiocyanate,3,5-dimethylbenzenisothiocyanate,acmc-20anca,3,5-xylyl isothiocyanate,1-isothiocyanato-3,5-dimethyl-benzene,#,isothiocyanic acid 3,5-dimethylphenyl ester PubChem CID: 142406 IUPAC Name: 1-isothiocyanato-3,5-dimethylbenzene SMILES: CC1=CC(=CC(=C1)N=C=S)C
2,5-Dimethylphenylboronic Acid (contains varying amounts of Anhydride), TCI America™
CAS: 85199-06-0 Molecular Formula: C8H11BO2 Molecular Weight (g/mol): 149.98 MDL Number: MFCD01863525 InChI Key: OOMZKLJLVGQZGV-UHFFFAOYSA-N Synonym: 2,5-dimethylphenyl boronic acid,2,5-dimethylbenzeneboronic acid,2,5-dimethylphenylboronicacid,2,5-dimethylphenyl boranediol,p-xylene-2-boronic acid,boronic acid, 2,5-dimethylphenyl,pubchem1831,p-xyleneboronic acid,ksc448a1r,2,5-dimehylphenylboronic acid PubChem CID: 2734347 IUPAC Name: (2,5-dimethylphenyl)boronic acid SMILES: CC1=CC=C(C)C(=C1)B(O)O
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
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
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-Dimethylbenzonitrile 97.0+%, TCI America™
CAS: 5724-56-1 Molecular Formula: C9H9N Molecular Weight (g/mol): 131.18 MDL Number: MFCD00019744 InChI Key: ZEDPQIJYJCPIRM-UHFFFAOYSA-N Synonym: benzonitrile, 2,3-dimethyl,3-cyano-o-xylene,unii-6s215f38ok,2,3-dimethylbenzonitril german,2,3-dimethylbenzenecarbonitrile,2,3-dimethylbenzonitril,dimethylbenzonitrile,pubchem8125,benzonitrile, dimethyl,medetomidine impurity 11 PubChem CID: 79802 IUPAC Name: 2,3-dimethylbenzonitrile SMILES: CC1=CC=CC(C#N)=C1C
![[4-Chloro-6-(2,3-xylidino)-2-pyrimidinylthio]acetic Acid 99.0+%, TCI America™](https://assets.fishersci.com/TFS-Assets/CCG/Chemical-Structures/chemical-structure-cas-50892-23-4.jpg-250.jpg)
[4-Chloro-6-(2,3-xylidino)-2-pyrimidinylthio]acetic Acid 99.0+%, TCI America™
CAS: 50892-23-4 Molecular Formula: C14H14ClN3O2S Molecular Weight (g/mol): 323.80 MDL Number: MFCD00191335 InChI Key: SZRPDCCEHVWOJX-UHFFFAOYSA-N Synonym: pirinixic acid,4-chloro-6-2,3-xylidino-2-pyrimidinylthio acetic acid,pirinixic acid inn,unii-86c4mrt55a,ccris 133,acide pirinixique inn-french,acido pirinixico inn-spanish,acidum pirinixicum inn-latin,acetic acid, 4-chloro-6-2,3-dimethylphenyl amino-2-pyrimidinyl thio PubChem CID: 5694 ChEBI: CHEBI:32509 IUPAC Name: 2-({4-chloro-6-[(2,3-dimethylphenyl)amino]pyrimidin-2-yl}sulfanyl)acetic acid SMILES: CC1=CC=CC(NC2=CC(Cl)=NC(SCC(O)=O)=N2)=C1C
N,N-Diethyl-2,3-dimethylbenzamide 98.0+%, TCI America™
CAS: 57806-76-5 Molecular Formula: C13H19NO Molecular Weight (g/mol): 205.301 MDL Number: MFCD06797096 InChI Key: SMVYLWURFNYXTP-UHFFFAOYSA-N Synonym: N,N-Diethyl-o-xylene-3-carboxamide PubChem CID: 15621069 IUPAC Name: N,N-diethyl-2,3-dimethylbenzamide SMILES: CCN(CC)C(=O)C1=C(C(=CC=C1)C)C
2,3-Dimethylaniline Hydrochloride 98.0+%, TCI America™
CAS: 5417-45-8 Molecular Formula: C8H12ClN Molecular Weight (g/mol): 157.641 MDL Number: MFCD00054332 InChI Key: DUQDEEVOZDZJGQ-UHFFFAOYSA-N Synonym: 2,3-Xylidine Hydrochloride PubChem CID: 22239262 IUPAC Name: 2,3-dimethylaniline;hydrochloride SMILES: CC1=C(C(=CC=C1)N)C.Cl
2-Iodo-m-xylene 98.0+%, TCI America™
CAS: 608-28-6 Molecular Formula: C8H9I Molecular Weight (g/mol): 232.064 MDL Number: MFCD00019012 InChI Key: QTUGGVBKWIYQSS-UHFFFAOYSA-N Synonym: 2-iodo-m-xylene,2,6-dimethyliodobenzene,m-xylene, 2-iodo,benzene, 2-iodo-1,3-dimethyl,1,3-dimethyl-2-iodobenzene,2-iodo-1,3-dimethyl-benzene,2,6-dimethyl-1-iodobenzene,2-iodo-o-xylene,pubchem3867,acmc-1axwc PubChem CID: 69097 IUPAC Name: 2-iodo-1,3-dimethylbenzene SMILES: CC1=C(C(=CC=C1)C)I
2,3-Dimethylphenylboronic Acid (contains varying amounts of Anhydride), TCI America™
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
2,6-Dimethylaniline Hydrochloride 98.0+%, TCI America™
CAS: 21436-98-6 Molecular Formula: C8H12ClN Molecular Weight (g/mol): 157.641 MDL Number: MFCD00060213 InChI Key: QNWMFJDRMZWZNN-UHFFFAOYSA-N Synonym: 2,6-Xylidine Hydrochloride PubChem CID: 88899 IUPAC Name: 2,6-dimethylaniline;hydrochloride SMILES: CC1=C(C(=CC=C1)C)N.Cl
2,5-Dichloro-p-xylene 97.0+%, TCI America™
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