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.
Apexbio Technology LLC PHENANTHRENE-D10-5MG
Phenanthrene-d10 (CAS No 1517-22-2) is a deuterated polycyclic aromatic hydrocarbon used in biomedical research It serves as a stable isotopic label aiding in the evaluation of metabolic pathways and environmental studies Its mechanism often involves the cytochrome P450 enzymatic pathway enabling the study of xenobiotic metabolism In vitro activities are typically present in the nanomolar to low micromolar range making it suitable for precise metabolic analyses This compound is widely applied in cell models and animal studies to monitor various physiological processes and is a valuable tool in drug screening assays particularly when investigating the pharmacokinetics of candidate molecules Experimental concentrations typically depend on the specific research design ensuring flexibility across different experimental setups
Medchemexpress LLC P-xylene-bis(N-pyridinium bromide) | 14208-10-7 | MFCD00043749 | >95.0% | 422.16 g·mol⁻¹ | C18H18Br2N2 | 5 G
p-Xylene bis(pyridinium bromide) is a bisquaternary pyridinium salt used as a cationic charged quencher and a weak acetylcholinesterase and butyrylcholinesterase inhibitor. It is provided as a solid powder and is used in biochemical assays, staining, and histology workflows.
- Used as a cationic charged quencher in fluorescence and staining applications.
- Weak AChE inhibitor (IC50 ≈ 1,540 μM) and BChE inhibitor (IC50 ≈ 529 μM).
- White to off-white solid, soluble in DMSO and DMF.
- Purity ≥95% (TLC).
- Molecular weight 422.16 g·mol⁻¹; formula C18H18Br2N2.
Aobchem 2 6-Dibromo-p-xylene | ≥97% | CAS 66788-13-4 | C8H8Br2 | 10g
2 6-Dibromo-p-xylene | ≥97% | CAS 66788-13-4 | C8H8Br2 | 10g
Aobchem 2 6-Dibromo-p-xylene | ≥97% | CAS 66788-13-4 | C8H8Br2 | 250mg
2 6-Dibromo-p-xylene | ≥97% | CAS 66788-13-4 | C8H8Br2 | 250mg
Aobchem 2 6-Dibromo-p-xylene | ≥97% | CAS 66788-13-4 | C8H8Br2 | 5g
2 6-Dibromo-p-xylene | ≥97% | CAS 66788-13-4 | C8H8Br2 | 5g
Aobchem 2 6-Dibromo-p-xylene | ≥97% | CAS 66788-13-4 | C8H8Br2 | 1g
2 6-Dibromo-p-xylene | ≥97% | CAS 66788-13-4 | C8H8Br2 | 1g
eMolecules 1170287-04-3 | 4-(2-METHOXYPHENYLSULFANYL)PIPERIDINE HCL | AstaTech | MFCD03840149 | 259.790 | C12H18ClNOS | 95.000 | Cl.COc1ccccc1SC1CCNCC1 | 0.25g | 112531263
4-(2-METHOXYPHENYLSULFANYL)PIPERIDINE HCL | AstaTech | 1170287-04-3 | MFCD03840149 | 259.790 | C12H18ClNOS | 95.000 | Cl.COc1ccccc1SC1CCNCC1 | 0.25g | 112531263
Chemscene ChemScene | 2-(3,5-Dimethylphenyl)acetic acid | 10G | CS-W016090 | 0.98 | 42288-46-0| MFCD00082776 | 164.2
ChemScene | 2-(3,5-Dimethylphenyl)acetic acid | 10G | CS-W016090 | 0.98 | 42288-46-0| MFCD00082776 | 164.2
Medchemexpress LLC p-xylene bis(pyridinium bromide) | 14208-10-7 | MFCD00043749 | 99.6% | 422.16 g/mol | C18H18Br2N2 | 1 G
p-Xylene bis(pyridinium bromide) is a bisquaternary pyridinium compound used in biochemical research as a cationic charged quencher and a weak inhibitor of acetylcholinesterase and butyrylcholinesterase. Its reported activity and high purity make it suitable for cholinesterase inhibitor studies and related biochemical assays.
- Cationic charged quencher for fluorescence assays.
- Weak bisquaternary AChE inhibitor (IC50 = 1540 μM).
- Weak bisquaternary BChE inhibitor (IC50 = 529 μM).
- High purity suitable for research use (99.6%).
- Molecular weight 422.16 g/mol; formula C18H18Br2N2.
- Supplied as a 1 g pack for laboratory use.
eMolecules 195383-89-2 | N-(2,6-Dimethylphenyl) 2-bromobenzamide | MFCD00027948 | 1g
Ambeed | Methyl((methylsulfinyl)methyl)sulfane | 1g | 601097565 | A589620 | 33577-16-1 | MFCD00002091 | 124.220 | C3H8OS2
If you are unable to find the chemical you are looking for, make sure you are logged into your fishersci.com account and click on the following link:
eMolecules Building Block Tool
eMolecules 4685-47-6 | 3,4-Dimethylanisole | Oakwood Chemical | MFCD00008396 | 136.194 | C9H12O | 0.000 | COc1ccc(C)c(C)c1 | 25g | 602878537
3,4-Dimethylanisole | Oakwood Chemical | 4685-47-6 | MFCD00008396 | 136.194 | C9H12O | 0.000 | COc1ccc(C)c(C)c1 | 25g | 602878537
Aobchem 4-Iodo-m-xylene | ≥95% | CAS 4214-28-2 | C8H9I | 500g
4-Iodo-m-xylene | ≥95% | CAS 4214-28-2 | C8H9I | 500g
eMolecules 33499-42-2 | AstaTech | ETHYL 24-DIMETHYLBENZOATE | 5g | 410711819 | 29478 | 97 | MFCD00015438 | 178.231 | C11H14O2
Ambeed | 1-(Methylamino)anthracene-910-dione | 25g | 627733485 | A281511 | 82-38-2 | MFCD00001197 | 237.258 | C15H11NO2
If you are unable to find the chemical you are looking for, make sure you are logged into your fishersci.com account and click on the following link:
eMolecules Building Block Tool
eMolecules 1150271-75-2 | 2-Fluoro-4,5-dimethylphenylboronic acid, pinacol ester | Combi-Blocks | MFCD12026082 | 250.120 | C14H20BFO2 | 98.000 | Cc1cc(F)c(cc1C)B1OC(C)(C)C(C)(C)O1 | 1g | 117545496
2-Fluoro-4,5-dimethylphenylboronic acid, pinacol ester | Combi-Blocks | 1150271-75-2 | MFCD12026082 | 250.120 | C14H20BFO2 | 98.000 | Cc1cc(F)c(cc1C)B1OC(C)(C)C(C)(C)O1 | 1g | 117545496