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.
Xylenes (Histological), Fisher Chemical™
CAS: 1330-20-7 Formule moléculaire: C8H10 Numéro MDL: MFCD00077264 Synonyme: Xylol,Dimethylbenzene
o-Xylene (Certified), Fisher Chemical
CAS: 95-47-6 Formule moléculaire: C8H10 Poids moléculaire (g/mol): 106.17 Numéro MDL: MFCD00008519 Clé InChI: CTQNGGLPUBDAKN-UHFFFAOYSA-N Synonyme: o-xylene,1,2-dimethylbenzene,ortho-xylene,o-xylol,o-methyltoluene,o-dimethylbenzene,2-xylene,3,4-xylene,benzene, 1,2-dimethyl,o-xylenes CID PubChem: 7237 ChEBI: CHEBI:28063 Nom IUPAC: 1,2-xylene SMILES: CC1=CC=CC=C1C
p-Xylene, 99+%, extra pure
CAS: 106-42-3 Formule moléculaire: C8H10 Poids moléculaire (g/mol): 106.17 Numéro MDL: MFCD00008556 Clé InChI: URLKBWYHVLBVBO-UHFFFAOYSA-N Synonyme: p-xylene,para-xylene,1,4-dimethylbenzene,p-methyltoluene,p-dimethylbenzene,p-xylol,benzene, 1,4-dimethyl,4-xylene,chromar,4-methyltoluene CID PubChem: 7809 ChEBI: CHEBI:27417 Nom IUPAC: 1,4-xylene SMILES: CC1=CC=C(C)C=C1
Xylenes, 98+%, for analysis, mixture of isomers
CAS: 1330-20-7 Formule moléculaire: C8H10 Synonyme: Dimethylbenzene
3-Iodo-o-xylene, 97%
CAS: 31599-60-7 Formule moléculaire: C8H9I Poids moléculaire (g/mol): 232.064 Numéro MDL: MFCD00041437 Clé InChI: DANMWBNOPFBJSZ-UHFFFAOYSA-N Synonyme: 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 CID PubChem: 141645 Nom IUPAC: 1-iodo-2,3-dimethylbenzene SMILES: CC1=C(C(=CC=C1)I)C
3,4-Dimethylbenzamide, 98%
CAS: 5580-33-6 Formule moléculaire: C9H11NO Poids moléculaire (g/mol): 149.193 Numéro MDL: MFCD00052960 Clé InChI: INGCXEIJXKQPJH-UHFFFAOYSA-N CID PubChem: 21755 Nom IUPAC: 3,4-dimethylbenzamide SMILES: CC1=C(C=C(C=C1)C(=O)N)C
3,5-Dimethylbenzoic acid, 99%
CAS: 499-06-9 Formule moléculaire: C9H10O2 Poids moléculaire (g/mol): 150.18 Numéro MDL: MFCD00002525 Clé InChI: UMVOQQDNEYOJOK-UHFFFAOYSA-N Synonyme: 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 CID PubChem: 10356 ChEBI: CHEBI:64821 Nom IUPAC: 3,5-dimethylbenzoic acid SMILES: CC1=CC(=CC(=C1)C(=O)O)C
5-Fluoro-m-xylene, 97%
CAS: 461-97-2 Formule moléculaire: C8H9F Poids moléculaire (g/mol): 124.158 Numéro MDL: MFCD00052366 Clé InChI: RCWIWNUVHNAUQC-UHFFFAOYSA-N Synonyme: 3,5-dimethylfluorobenzene,5-fluoro-m-xylene,1,3-dimethyl-5-fluorobenzene,benzene, 1-fluoro-3,5-dimethyl,pubchem4410,5-fluoro-1,3-xylene,acmc-1ahss,3,5-dimethyl-fluorobenzene,3,5-dimethylphenyl fluoride,ksc497s5r CID PubChem: 521192 Nom IUPAC: 1-fluoro-3,5-dimethylbenzene SMILES: CC1=CC(=CC(=C1)F)C
3,5-Dimethylaniline, 97+%
CAS: 108-69-0 Formule moléculaire: C8H11N Poids moléculaire (g/mol): 121.18 Numéro MDL: MFCD00007813 Clé InChI: MKARNSWMMBGSHX-UHFFFAOYSA-N Synonyme: 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 CID PubChem: 7949 Nom IUPAC: 3,5-dimethylaniline SMILES: CC1=CC(=CC(=C1)N)C
O-Xylene, Certified Reference Material, MilliporeSigma™ Supelco™
Pharmaceutical secondary standards for application in quality control. Provides pharma laboratories and manufacturers with a convenient, and cost-effective alternative to the preparation of in-house working standards.
4,5-Dibromo-o-xylene, 97%
CAS: 24932-48-7 Formule moléculaire: C8H8Br2 Poids moléculaire (g/mol): 263.96 Numéro MDL: MFCD00082743 Clé InChI: BCIDDURGCAHERU-UHFFFAOYSA-N Synonyme: 4,5-dibromo-o-xylene,benzene, 1,2-dibromo-4,5-dimethyl,acmc-209gfu,benzene,1,2-dibromo-4,5-dimethyl,1,2-bis bromanyl-4,5-dimethyl-benzene,1,2-dibromo-4,5-dimethylbenzene,1,2-dibromo-4,5-dimethyl-benzene CID PubChem: 34347 Nom IUPAC: 1,2-dibromo-4,5-dimethylbenzene SMILES: CC1=CC(Br)=C(Br)C=C1C
4-Bromo-m-xylene, 97%
CAS: 583-70-0 Formule moléculaire: C8H9Br Poids moléculaire (g/mol): 185.06 Numéro MDL: MFCD00000071 Clé InChI: YSFLQVNTBBUKEA-UHFFFAOYSA-N Synonyme: 4-bromo-m-xylene,2,4-dimethylbromobenzene,benzene, 1-bromo-2,4-dimethyl,4-bromo-1,3-dimethylbenzene,1,3-dimethyl-4-bromobenzene,m-xylene, 4-bromo,1-bromo-2,4-dimethyl-benzene,4-brom-m-xylol,pubchem3762,acmc-1aowv CID PubChem: 68503 Nom IUPAC: 1-bromo-2,4-dimethylbenzene SMILES: CC1=CC=C(Br)C(C)=C1
3,5-Dimethylbenzeneboronic acid, 98%
CAS: 172975-69-8 Formule moléculaire: C8H11BO2 Poids moléculaire (g/mol): 149.984 Numéro MDL: MFCD00185689 Clé InChI: DJGHSJBYKIQHIK-UHFFFAOYSA-N Synonyme: 3,5-dimethylphenyl boronic acid,3,5-dimethylbenzeneboronic acid,3,5-dimethylphenyl boranediol,m-xylene-5-boronic acid,boronic acid, 3,5-dimethylphenyl,pubchem1833,acmc-209e5l,ksc174i6l,3.5-dimethylphenylboronic acid CID PubChem: 2734349 Nom IUPAC: (3,5-dimethylphenyl)boronic acid SMILES: B(C1=CC(=CC(=C1)C)C)(O)O
3,5-Dimethylphenylacetic acid, 98+%
CAS: 42288-46-0 Formule moléculaire: C10H11O2 Poids moléculaire (g/mol): 163.20 Numéro MDL: MFCD00082776 Clé InChI: HDNBKTWQBJJYPD-UHFFFAOYSA-M Synonyme: 3,5-dimethylphenylacetic acid,2-3,5-dimethylphenyl acetic acid,3,5-dimethylphenyl acetic acid,benzeneacetic acid, 3,5-dimethyl,3,5-xylyl acetic acid,acmc-20anc9,ksc238q4h,3,5-dimethylbenzeneacetic acid,3,5-dimethyl-phenyl-acetic acid CID PubChem: 4749495 Nom IUPAC: 2-(3,5-dimethylphenyl)acetic acid SMILES: CC1=CC(CC([O-])=O)=CC(C)=C1