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.
3,4-Dimethylphenylboronic acid, 97%, May contain varying amounts of anhydride, Thermo Scientific™
CAS: 55499-43-9 Molecular Formula: C8H11BO2 Molecular Weight (g/mol): 149.98 MDL Number: MFCD01009694 InChI Key: KDVZJKOYSOFXRV-UHFFFAOYSA-N Synonym: 3,4-dimethylphenyl boronic acid,3,4-dimethylbenzeneboronic acid,3,4-dimethylphenyl boranediol,3,4-dimethylphenylboronicacid,4-borono-o-xylene,boronic acid, 3,4-dimethylphenyl,pubchem1832,acmc-209lna,3.4-dimethylbenzeneboronic acid,3,4-dimethyl phenylboronic acid PubChem CID: 2734348 IUPAC Name: (3,4-dimethylphenyl)boronic acid SMILES: CC1=CC=C(C=C1C)B(O)O
3,4-Dimethylbenzenesulfonyl chloride, 98%
CAS: 2905-30-8 Molecular Formula: C8H9ClO2S Molecular Weight (g/mol): 204.668 MDL Number: MFCD00625742 InChI Key: DNMQPRPJIWTNAX-UHFFFAOYSA-N Synonym: 3,4-dimethylbenzene-1-sulfonyl chloride,3,4-dimethylbenzenesulfonylchloride,3,4-dimethyl-benzenesulfonyl chloride,benzenesulfonyl chloride, 3,4-dimethyl,3,4-dimethylphenyl chlorosulfone,ksc562m4t,3,4-dimethylphenylsulfonyl chloride,3,4-dimethylbenzenesulphonyl chloride,3,4-dimethyl benzenesulfonyl chloride PubChem CID: 3689743 IUPAC Name: 3,4-dimethylbenzenesulfonyl chloride SMILES: CC1=C(C=C(C=C1)S(=O)(=O)Cl)C
2,4-Dimethylphenyl isocyanate, 98+%
CAS: 51163-29-2 Molecular Formula: C9H9NO Molecular Weight (g/mol): 147.177 MDL Number: MFCD00013853 InChI Key: QUOBVYPFBJUOAJ-UHFFFAOYSA-N Synonym: 2,4-dimethylphenyl isocyanate,2,4-dimethylphenylisocyanate,benzene, 1-isocyanato-2,4-dimethyl,2,4-dimethylbenzenisocyanate,acmc-20aoc8,1-isocyanato-2,4-dimethyl-benzene PubChem CID: 5207585 IUPAC Name: 1-isocyanato-2,4-dimethylbenzene SMILES: CC1=CC(=C(C=C1)N=C=O)C
3-Chloro-o-xylene, 97%
CAS: 608-23-1 Molecular Formula: C8H9Cl Molecular Weight (g/mol): 140.61 MDL Number: MFCD00060689 InChI Key: NVLHGZIXTRYOKT-UHFFFAOYSA-N Synonym: 3-chloro-o-xylene,2,3-dimethylchlorobenzene,benzene, chlorodimethyl,3-chloro-1,2-dimethylbenzene,3-chloro-ortho-xylene,benzene, 1-chloro-2,3-dimethyl,xylyl chloride,chloro o-xylene,mono-chlorxylol,chloro-ortho-xylene PubChem CID: 32884 IUPAC Name: 1-chloro-2,3-dimethylbenzene SMILES: CC1=C(C(=CC=C1)Cl)C
3,3',5,5'-Tetramethylbiphenyl, 97+%
CAS: 25570-02-9 Molecular Formula: C16H18 Molecular Weight (g/mol): 210.32 MDL Number: MFCD00051910 InChI Key: CMZYGFLOKOQMKF-UHFFFAOYSA-N PubChem CID: 520212 IUPAC Name: 1-(3,5-dimethylphenyl)-3,5-dimethylbenzene SMILES: CC1=CC(=CC(C)=C1)C1=CC(C)=CC(C)=C1
2,2',5,5'-Tetramethylbiphenyl, 98%
CAS: 3075-84-1 Molecular Formula: C16H18 Molecular Weight (g/mol): 210.32 MDL Number: MFCD00151846 InChI Key: ZHTROMYSDSTCCE-UHFFFAOYSA-N PubChem CID: 137818 IUPAC Name: 2-(2,5-dimethylphenyl)-1,4-dimethylbenzene SMILES: CC1=CC=C(C)C(=C1)C1=CC(C)=CC=C1C
2,6-Dimethylbenzoic acid, 98+%
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
M-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-Benzyloxy-3,5-dimethylbenzaldehyde, 95%
CAS: 144896-51-5 Molecular Formula: C16H16O2 Molecular Weight (g/mol): 240.30 MDL Number: MFCD00800683 InChI Key: GSYUTKRSEZMBNC-UHFFFAOYSA-N Synonym: 4-benzyloxy-3,5-dimethylbenzaldehyde,3,5-dimethyl-4-phenylmethoxy benzaldehyde,zlchem 1072,acmc-1bxy6,3,5-dimethyl-4-benzyloxybenzaldehyde,3,5-dimethyl-4-benzyloxy benzaldehyde,4-benzyloxy-3,5-dimethyl-benzaldehyde PubChem CID: 563557 IUPAC Name: 3,5-dimethyl-4-phenylmethoxybenzaldehyde SMILES: CC1=CC(C=O)=CC(C)=C1OCC1=CC=CC=C1
2-Iodo-4,6-dimethylaniline, 98%, Thermo Scientific Chemicals
CAS: 4102-54-9 Molecular Formula: C8H10IN Molecular Weight (g/mol): 247.079 MDL Number: MFCD07779005 InChI Key: ODPOIEACUVQCBZ-UHFFFAOYSA-N Synonym: 2,4-dimethyl-6-iodoaniline,2-iodo-4,6-di-methylaniline,benzenamine,2-iodo-4,6-dimethyl PubChem CID: 14040290 IUPAC Name: 2-iodo-4,6-dimethylaniline SMILES: CC1=CC(=C(C(=C1)I)N)C
4,5-Dimethyl-o-phenylenediamine, 98%
CAS: 3171-45-7 Molecular Formula: C8H12N2 Molecular Weight (g/mol): 136.20 MDL Number: MFCD00007729 InChI Key: XSZYBMMYQCYIPC-UHFFFAOYSA-N Synonym: 4,5-dimethyl-1,2-phenylenediamine,4,5-diamino-o-xylene,4,5-dimethyl-o-phenylenediamine,1,2-benzenediamine, 4,5-dimethyl,1,2-diamino-4,5-dimethylbenzene,4,5-dimethyl-1,2-benzenediamine,4,5-dimethyl-benzene-1,2-diamine,4,5-dimethyl-ortho-phenylenediamine,4,5-dimethylphenylene-1,2-diamine,4,5-dimethyl-o-phenylenediamine monohydrate PubChem CID: 76635 IUPAC Name: 4,5-dimethylbenzene-1,2-diamine SMILES: CC1=CC(N)=C(N)C=C1C
2-Chloro-N-(2,3-dimethylphenyl)benzamide, 97%
CAS: 196617-88-6 Molecular Formula: C15H14ClNO Molecular Weight (g/mol): 259.733 MDL Number: MFCD00018254 InChI Key: OUAGJVUPQKYHDU-UHFFFAOYSA-N Synonym: 2-chloro-n-2,3-dimethylphenyl benzamide,cambridge id 5328590,2-chloro-2',3'-benzoxylidide,2-chloro-n-2,3-dimethyl-phenyl-benzamide,n-2,3-dimethylphenyl 2-chlorophenyl carboxamide PubChem CID: 295079 IUPAC Name: 2-chloro-N-(2,3-dimethylphenyl)benzamide SMILES: CC1=C(C(=CC=C1)NC(=O)C2=CC=CC=C2Cl)C
2,6-Dimethylbenzeneboronic acid, 97%
CAS: 100379-00-8 Molecular Formula: C8H11BO2 Molecular Weight (g/mol): 149.98 MDL Number: MFCD01009693 InChI Key: ZXDTWWZIHJEZOG-UHFFFAOYSA-N Synonym: 2,6-dimethylphenyl boronic acid,2,6-dimethylbenzeneboronic acid,2,6-dimethylphenyl boranediol,2,6-dimethylboronic acid,m-xylene-2-boronic acid,2,6-dimethyl-phenylboronic acid,boronic acid, 2,6-dimethylphenyl,2-borono-m-xylene,pubchem16357,acmc-1c3za PubChem CID: 583322 IUPAC Name: (2,6-dimethylphenyl)boronic acid SMILES: CC1=CC=CC(C)=C1B(O)O
3,5-Dimethylphenyl isocyanate, 97%
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
2,3-Dimethylanisole, 97%
CAS: 2944-49-2 Molecular Formula: C9H12O Molecular Weight (g/mol): 136.194 MDL Number: MFCD00008376 InChI Key: BLMBNEVGYRXFNA-UHFFFAOYSA-N Synonym: 2,3-dimethylanisole,3-methoxy-o-xylene,benzene, 1-methoxy-2,3-dimethyl,benzene, methoxydimethyl,1,2-dimethyl-6-methoxybenzene,1-methoxy-2,3-dimethyl-benzene,dimethylanisole,pubchem4114,2,3-dimethyl anisole,2,3-dimethyl-anisole PubChem CID: 76269 IUPAC Name: 1-methoxy-2,3-dimethylbenzene SMILES: CC1=C(C(=CC=C1)OC)C