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.
4,5-Dimethyl-o-phenylenediamine, 98%, many contain up to ca 15% water
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
Xylenes, MilliporeSigma™
CAS: 1330-20-7 Molecular Formula: C8H10 Molecular Weight (g/mol): 106.17 InChI Key: IVSZLXZYQVIEFR-UHFFFAOYSA-N IUPAC Name: 1,3-xylene SMILES: CC1=CC(C)=CC=C1
Xylenes, 98.5%, MilliporeSigma™
CAS: 1330-20-7 Molecular Weight (g/mol): 106.17
o-Xylene, 98.0%, MilliporeSigma™
CAS: 95-47-6 Molecular Formula: C8H10 Molecular Weight (g/mol): 106.17 InChI Key: CTQNGGLPUBDAKN-UHFFFAOYSA-N IUPAC Name: 1,2-xylene SMILES: CC1=CC=CC=C1C
Sigma Aldrich alpha,alpha'-Dibromo-m-xylene
MilliporeSigma Sigma Organics products encompass a wide range of quality reagents, solvents, catalysts, and building blocks for organic synthesis. From benchtop discovery to process development and scale-up, Sigma Organics solutions are built to meet the needs of synthetic chemists.
Sigma Aldrich alpha,alpha'-Dichloro-m-xylene
MilliporeSigma Sigma Organics products encompass a wide range of quality reagents, solvents, catalysts, and building blocks for organic synthesis. From benchtop discovery to process development and scale-up, Sigma Organics solutions are built to meet the needs of synthetic chemists.
Sigma Aldrich alpha,alpha'-Dibromo-p-xylene
MilliporeSigma Sigma Organics products encompass a wide range of quality reagents, solvents, catalysts, and building blocks for organic synthesis. From benchtop discovery to process development and scale-up, Sigma Organics solutions are built to meet the needs of synthetic chemists.
Sigma Aldrich 4-Azabenzimidazole
MilliporeSigma Sigma Organics products encompass a wide range of quality reagents, solvents, catalysts, and building blocks for organic synthesis. From benchtop discovery to process development and scale-up, Sigma Organics solutions are built to meet the needs of synthetic chemists.
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
Medchemexpress LLC Xylene Cyanol FF | 2650-17-1 | 94.69% | 5 G
Xylene Cyanol FF is an acid triphenylmethane dye used for histochemical staining of hemoglobin peroxidase or as a tracking dye for DNA sequencing in electrophoresis. It can also be catalyzed by Fe and Al to accelerate oxidation under the addition of double oxidant hydrogen peroxide and potassium periodate, enabling the spectrophotometric determination of Fe and Al in tested solutions. It is also used for denaturing and non-denaturing polyacrylamide gels in DNA tracking.
- Acid triphenylmethane dye
- Molecular weight: 538.61
- Formula: C₂₅H₂₇N₂NaO₆S₂
- Cas number: 2650-17-1
- Appearance: Solid
- Color: Dark green to black
- Purity: 94.69%
- Solubility: 10 mg/mL in H₂O (18.57 mM; ultrasonic and warming and heat to 60°C)
Apexbio Technology LLC PP 2 (AG 1879) 172889-27-9 10mg
PP 2 (AG 1879 CAS 172889-27-9) is a selective inhibitor targeting Src family tyrosine kinases such as Lck and Fyn with reported IC50 values of approximately 4 nM and 5 nM respectively Src family kinases are composed of nine closely related tyrosine kinases including Src Yes Fyn Fgr Yrk Lyn Blk Hck and Lck PP 2 suppresses early T-cell signaling by blocking Lck- and Fyn-mediated tyrosine phosphorylation following anti-CD3 stimulation Research in glioma cell models (U251) has demonstrated PP 2-mediated inhibition of Src-dependent cellular invasion and proliferation at micromolar concentrations PP 2 exhibits moderate inhibitory activity toward EGF-R (IC50 480 nM) and minimal effect on ZAP-70 and JAK2 Thus PP 2 serves as a research tool for studying Src kinase-dependent signaling pathways implicated in cancer and immunological responses
Apexbio Technology LLC PP 2 (AG 1879) 172889-27-9 25mg
PP 2 (AG 1879 CAS 172889-27-9) is a selective inhibitor targeting Src family tyrosine kinases such as Lck and Fyn with reported IC50 values of approximately 4 nM and 5 nM respectively Src family kinases are composed of nine closely related tyrosine kinases including Src Yes Fyn Fgr Yrk Lyn Blk Hck and Lck PP 2 suppresses early T-cell signaling by blocking Lck- and Fyn-mediated tyrosine phosphorylation following anti-CD3 stimulation Research in glioma cell models (U251) has demonstrated PP 2-mediated inhibition of Src-dependent cellular invasion and proliferation at micromolar concentrations PP 2 exhibits moderate inhibitory activity toward EGF-R (IC50 480 nM) and minimal effect on ZAP-70 and JAK2 Thus PP 2 serves as a research tool for studying Src kinase-dependent signaling pathways implicated in cancer and immunological responses
p-Xylene, 98.0%, MilliporeSigma™
CAS: 106-42-3 Molecular Weight (g/mol): 106.17