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.
Ambeed 2-(2,6-DIMETHYLPHENYL)-4,4, 1G
2-(2,6-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, 95+% 1g CAS#325141-72-8 MFCD18729898 C14H21BO2 MW:232.13
eMolecules 2-Chloro-p-xylene | 95-72-7 | MFCD00000564 | 25g
Oakwood Chemical | 2-Chloro-p-xylene | 25g | 537703643 | 094429 | | 95-72-7 | MFCD00000564 | 140.610 | C8H9Cl
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Ihc World LLC XYLENE, LABORATORY GRADE 1GALL
Xylene, laboratory grade by StatLab. Purified and filtered to deliver a high quality, consistent product. High solvency factor ensures quick and complete clearing. Free of impurities and water. Size: 1 gallon.
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.
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.
Sigma Aldrich Fine Chemicals Biosciences m-Xylene, anhydrous | 108-38-3 | MFCD00008536 | 1L
m-Xylene, anhydrous | Purity: ≥99% | Mol Wt: 106.17 | 108-38-3 | MFCD00008536 | 1L
Sigma Aldrich Fine Chemicals Biosciences Xylenes | 1330-20-7 | MFCD00077264 | 500ml
Xylenes | Mol Wt:106.17 | 1330-20-7 | MFCD00077264 | 500ml
eMolecules Medchem Express / Lasalocid / 5mg / 446273590 / HY-B1071 / / 25999-31-9 / MFCD00242774 / 590.798 / C34H54O8
Medchem Express / Lasalocid / 5mg / 446273590 / HY-B1071 / / 25999-31-9 / MFCD00242774 / 590.798 / C34H54O8
Chemscene ChemScene | 3-Bromo-2,6-dimethylbenzoic acid | 5G | CS-0153737 | 0.98 | 123278-07-9| MFCD09260824 | 229.073
ChemScene | 3-Bromo-2,6-dimethylbenzoic acid | 5G | CS-0153737 | 0.98 | 123278-07-9| MFCD09260824 | 229.073
E K Industries Xylene | 128686-03-3 | MFCD00077264 | 4 x 1 gal
Xylene | Mol Wt: 318.50 | 128686-03-3 | MFCD00077264 | 4 x 1 gal
Medchemexpress LLC Dexmedetomidine | 113775-47-6 | 99.9% | 50 MG
Dexmedetomidine is a potent, selective, and orally active agonist of α2-adrenoceptor, with a Ki of 1.08 nM. It shows 1620-fold selectivity against α1-adrenoceptor and exhibits anxiolysis, sedation, and modest analgesia effects.
- Potent α2-adrenoceptor agonist
- Selective α2-adrenoceptor agonist
- Orally active
- Exhibits anxiolysis
- Provides sedation
- Offers modest analgesia effects
eMolecules (S)-1-(2,6-Dimethylphenyl)ethanamine hydrochloride | 1269437-72-0 | MFCD12757572 | 1g
Ambeed | (S)-1-(2,6-Dimethylphenyl)ethanamine hydrochloride | 1g | 525074915 | A160160 | | 1269437-72-0 | MFCD12757572 | 185.700 | C10H16ClN
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Research Products International Corp Xylene, Scintillation Grade, 4 Liters
WARNING! This product can expose you to Ethyl benzene, a chemical which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.